Medium and Heavy Trucks

Have Truck Repair Questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Medium and Heavy Trucks

Low oil pressure when hot. 2012 IHC with maxxforce 13.

Customer Question
Low oil pressure when hot JA...
Low oil pressure when hot
JA: What's the make/model/year of your truck? Engine type?
Customer: 2012 IHC with maxxforce 13
JA: Are you fixing your truck yourself? What have you tried so far?
Customer: yes fixing. Unit had low oil pressure hot and oil comsumption issues. Chased after oil pressure problem, replaced oil pump did not cure problem, looked at main brgs and found slight scoring. Did a complete out of frame rebuild, put on new head as old one had cracks between valves. Problem seemed ok for first few days running then reoccurred. Oil consumption problem gone now. Just an oil pressure hot problem.
JA: Anything else you want the truck mechanic to know before I connect you?
Customer: He will have lots of questions
Submitted: 1 year ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 7 minutes by:
11/25/2016
Technician: Alex Olsen,
 replied 1 year ago
Alex Olsen
Category: Medium and Heavy Trucks
Satisfied Customers: 197
Experience: Lead technican at Astleford international trucks
Verified

hi im alex, could i have the last 8 of your vin please?

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

what is your oil pressure hot and what weight oil are you running?

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

here is the low oil pressure diag, what all did you replace/ inspect when you rebuilt it?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Our hot oil pressure is 52 psi @ 200° and at idle same temp is 10 psi and at 230° idle is 7 psi which is tripping warnings on. Using 15W40 Rotella oil
Technician: Alex Olsen,
 replied 1 year ago

yeah that is pretty low did you replace the oil pressure regulator or have the oil cooler assembly off?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
We have replaced oil pressure sensor and verified pressures by manual gauge "T'ed" in and computer, new oil pump, new mains and rod brgs (plastic gauged all in spec.) crank was polished, head new. We have by passed oil cooler assy and replaced the oil pressure regulator. still an issue
Technician: Alex Olsen,
 replied 1 year ago

if you see in the pdf step 5, is the cup plug leaking?

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

strange you fixed the oil consumption but not the low oil pressure, where was the oil going?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Cup plug not leaking, had oil system air pressured up with oil pan off checking for air leaking from different points. Have done all the testing in the diag sheets.
Technician: Alex Olsen,
 replied 1 year ago

tested hot? or cold

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Consumption cured by new rings, and head replacement. Unable to test hot by the time the pan is pulled it's cold.
Technician: Alex Olsen,
 replied 1 year ago

ok usually we plug in block heater to get it hot and test, if the turbo is not passing oil and you are not consuming it there must be something leaking internally when hot

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

230 oil temp is really hot, full load oil temp max spec is 208

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

oil pressure is 10psi min at idle and 72psi at full load

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

how did you bypass the oil cooler? do you meen the spinner filter? was that checked and replaced?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
The IHC manual says 230 oil temp is ok. Installed bypass hose on oil cooler ports to eliminate. we are at the 10 psi at idle and unit trips warning light in gauge in cluster but only logs at pcm code at 7 psi which we had.
Technician: Alex Olsen,
 replied 1 year ago

have you checked the spinner?

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

i assume you have

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

i have never heard of bypassing a oil cooler on a max 13? have you done this before? as far as i knew the plugs are never to be removed

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

im looking at the book and it says 208 max oil temp at full load? what book are you looking at?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
We have bypassed the spinner and the plugs for the cooler says by the manual that they are not serviceable but when at whits end we taped in there to eliminate it.
Technician: Alex Olsen,
 replied 1 year ago

wow ok, didnt know that was possible well there has to be a leak but if you are running 230 oil temp at idle that is way to hot should be in 175-190

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
oil temp is typically 20° hotter than coolant, IHC thermostat by the spec only opens at 216° (coolant) = 236 oil
Technician: Alex Olsen,
 replied 1 year ago

well in the book it says max 208 at full load so 230 at idle is to hot sounds to me like you have a bad oil cooler

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

the thermostats open at 181 on this engine

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
We may have mis informed you, we don't have 230° at idle, we are in the range you gave us at idle. yes thermostats start opening at 181° and fully opened at 216°.
Technician: Alex Olsen,
 replied 1 year ago

ok yeah you said 230 and 7 psi idle

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
We don't really have an oil temp issues its a pressure issue hot. 10psi at idle 200°
Technician: Alex Olsen,
 replied 1 year ago

ok and you get a low oil pressure code in the ECM

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Yeah we could get it up to 230° then idle it and 7 psi. sorry
Technician: Alex Olsen,
 replied 1 year ago

the coolant temp to 230 or the oil

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
oil temp
Customer reply replied 1 year ago
low code at 7 psi, warning at 10 psi.
Technician: Alex Olsen,
 replied 1 year ago

and how are you getting it that hot? just by driving it under load

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

i would get it hot, pull in shop and plug block heater in drop pan and pressure test, if you dont find a leak hot then i would replace the oil cooler, since that is not a navistar procedure to bypass the cooler i can not be sure it is bypassed, what was the oil temp with the cooler bypassed?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
We have proven with a pressure test that there is no restriction in the oil cooler.
Technician: Alex Olsen,
 replied 1 year ago

so before this all started the oil temp was at 230 and you had good oil pressure?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
No. It started off as warnings and coding for low oil pressure when operating normally and at idle. This is where we started finding pressure and temp readings.
Technician: Alex Olsen,
 replied 1 year ago

ok well the oil is to hot, i would say you do have a oil temp problem what is the coolant temp at? when the oil is at 230

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
When the coolant is at 200° we are at min oil psi spec of 10 psi. This is not good.
Technician: Alex Olsen,
 replied 1 year ago

no it is not like ii said get it as hot as you can and plug in block heater drop pan as fast as it can and pressure test must be a leak but why oil temp is that hot is concerning as well

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

im not trying to second guess you or anything just want to know all i can since im not actually working on it and only have what you tell me to go off

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Totally understand!
Customer reply replied 1 year ago
We have had enough for today and will resume Monday Am. Thanks talk to you then.
Technician: Alex Olsen,
 replied 1 year ago

sounds good to me, have a good weekend

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Good day! What or how much oil should be by passing in the spinner filter?
Technician: Alex Olsen,
 replied 1 year ago

You are talking the spinner on the frame or the crank case spinner on the engine?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Crank case spinner on the engine
Technician: Alex Olsen,
 replied 1 year ago

Should be no oil coming out of the road draft tube

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
Sorry we are talking about the oil return side of that spinner
Technician: Alex Olsen,
 replied 1 year ago

There is no spec for that so I'm not sure never had that as a concern shouldn't be a alot

Ask Your Own Medium and Heavy Trucks Question
Technician: Alex Olsen,
 replied 1 year ago

another thing to maybe check is the drain valve in the filter housing, if that is not fully seating it will cause low oil pressure, was there alot of metal in the pan from the bearings?

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 1 year ago
There was not a lot of material in the pan. We have checked and verified that drain valve. We did find with some more air pressure testing that we can hear air escaping out the back structure starting at about 5 PSI.
Technician: Alex Olsen,
 replied 1 year ago

Ok

Ask Your Own Medium and Heavy Trucks Question
Ask Daniel Wilson Your Own Question
Daniel Wilson
Daniel Wilson
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 2,363
2,363 Satisfied Customers
Experience: Owner at DJ Wilson

Daniel Wilson is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

2,363 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,247 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,640 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,019 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,225 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

813 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Related Medium and Heavy Trucks Questions
My 4 way dose not turn off I have to disconnect battery for
My 4 way flasher dose not turn off I have to disconnect battery for it to stop flashing … read more
Daniel Wilson
Daniel Wilson
2,363 satisfied customers
My 2012 Freightliner DD15 started derating without telling
My 2012 Freightliner DD15 started derating without telling me it was derating. The low DEF light keeps blinking even though there is plenty of DEF. I know it wants to do a parked regen although no lig… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Vocational, Technical or Trade School
2,019 satisfied customers
TZ25Da boomer tractor, there are 3 light on the right side
TZ25Da boomer tractor, there are 3 light on the right side of the dash, only two light up the right and the glow plug middle light. When I turn the key nothing happens. I have power to the starter and… read more
Curtis B.
Curtis B.
Technician
Associate Degree
813 satisfied customers
4.5L V-6 Power Stroke Diesel (Navistar VT275 Engine) hard
4.5L V-6 Power Stroke Diesel (Navistar VT275 Engine)hard start turns over too many times on cold start… read more
Daniel Wilson
Daniel Wilson
2,363 satisfied customers
On a n14 cummins will you lose coolant when you pull an
On a n14 cummins will you lose coolant when you pull an injector out with out draining it down? … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,225 satisfied customers
Truck has the trap 1 particulate code and the red wngine
Truck has the trap 1 particulate code and the red wngine light on it didnt indicated a regen … read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
The 11.1 60 series is in a motor home Dina bus conversion.
The 11.1 60 series is in a motor home Dina bus conversion. Have not started it for about a year. Put in fresh batteries and it stated right up. After about 10 seconds the stop engine come on and in an… read more
roy
roy
Associate Degree
3 satisfied customers
Diesel fuel filter.primary, developed a hole. diesel sprayed
diesel fuel filter.primary, developed a hole. diesel sprayed on driver side of engine and front left axle. truck shut down showing j1939 engine failure. abs light causes shutdown.how do i correct this… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,640 satisfied customers
I just bought am 08 Mack with the MP7 engine this past
Hello, I just bought am 08 Mack with the MP7 engine this past Saturday. Drove it for about two hours and noticed that it started losing power and acted like it was starved for fuel. Put more fuel in i… read more
Daniel Wilson
Daniel Wilson
2,363 satisfied customers
I have a question about truck we have and trying to find out
Hello there i have a question about truck we have and trying to find out are we exempt for ELDs its glider kits 12.7 detroit but since its remain detroit rebulided in Detroit it has new engine serial … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Vocational, Technical or Trade School
2,019 satisfied customers
I had a mechanic install the #6 injector. Last week it
I had a mechanic install the #6 injector. Last week it started running bad no power. I hooked up the scan tool said #6 open or closed. I took the valve cover off and seen the #6 injector clip was sque… read more
roy
roy
Associate Degree
3 satisfied customers
Have continuous nock in cat d324 engine on D8k dozer.Comes
Have continuous nock in cat d324 engine on D8k dozer.Comes in after about 15 seconds after starting.Rythem doesn't change just gets faster when revs increase.Has been doing it for about 20hrs with no … read more
Curtis B.
Curtis B.
Technician
Associate Degree
813 satisfied customers
I have a 2008 c13 with code 3473-31 i have tried the spark
i have a 2008 c13 with code 3473-31 i have tried the spark plug then tried to do a manual regen but it is locked how do you get the factory pass words to unlock it … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,247 satisfied customers
I am getting 2 codes on my Detroit 60 Series. J1708-12-
Hello,I am getting 2 codes on my Detroit 60 Series. J1708-12- Engine #1 and J178-219- Collision Avoidance SystemsIt seems that it is affecting our power output as if the turbo does not work or somethi… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
784 satisfied customers
I HAVE A 2006 INT. WITH A ISX CUMMINS ENGINE.AS I PUT
I HAVE A 2006 INT. WITH A ISX CUMMINS ENGINE.AS I PUT PRESSURE ON ENGINE THROUGH ACCELARATION; I HEAR A GREAT DEAL OF AIR GUSTING AND TRUCK SEEMS TO BE LOOSING POWER. WHAT CAN PROBLEM BE? … read more
roy
roy
Associate Degree
3 satisfied customers
Been have on going aftertreatment issues and now I am
Been have on going aftertreatment issues and now I am dealing with engine code 1939 … read more
roy
roy
Associate Degree
3 satisfied customers
Probably air pockets in cooling system, 2014 international
No very hot air comming from cabin heator or auxiliary system in bunk/sleeper… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,640 satisfied customers
2011 prostar EBPC open load/circuit, ECL below Warning,
2011 prostar EBPC open load/circuit, ECL below Warning, overboost, IAHFI open/load circuit, IAH relay return(relay or igniter or circuit failure … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Vocational, Technical or Trade School
2,019 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x