Medium and Heavy Trucks

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I have an 05 western star with a c15 acert,my radiator was
Hi,I have an 05 western star with a c15 acert,my radiator was shot so I changed it and since it's been changed the engine oil temp at idle is 125 and oil pressure is 60 psi. Running down the road it's… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Have cat motor need some help. Dump truck 347000 miles. 2006
trying to determain wheather or not my oil pressure gauge is bad by using a manual gauge on the motor need help finding location where to connect gauge … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
Cat Man I have a 2015 389 Pete 3406 E cat motor it has a
Cat Man I have a 2015 389 Pete 3406 E cat motor it has a miss all the time but it get worse as the day goes on and it seems to be worse at 1600 and 1700 rpm it has six new remain cAt injectors and tha… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
Platinum I've over haul on mxs c15 and now has 30 psi of oil
Platinum I've over haul on mxs c15 and now has 30 psi of oil pressure at idle with coolent at 150 and and 50-55 cruising not pulling … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
Can you tell me about the oil pressure ranges for the Cumins
Hi, Can you tell me about the oil pressure ranges for the Cumins N14 Select.Cold start oil pressure, hot engine and perhaps what it should go up to when you rev the engine what is normal, marginally l… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Oil pressure low at idle 3406e 5ek. Frieghtliner FLD120
Oil pressure low at idle 3406e 5ek JA: What's the make/model/year of your truck? Engine type? Customer: Frieghtliner FLD120 1996 JA: Are you fixing your truck yourself? What have you tried so far? Cus… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
I'am working on a 1999 CAT 3406E in a freightliner truck,
Hi, I'am working on a 1999 CAT 3406E in a freightliner truck, the truck has been sitting for 4 months and now it will not start. I scanned the engine there are no active fault codes, I'm almost certai… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a Detroit eng sn 06R0876258. It has low oil pressure
I have a Detroit eng sn 06R0876258. It has low oil pressure and was getting hot today climbing a hill. the ecm shut it down for engine protection. the oil pressure on dash at idle is 15 psi and 30psi … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
C7 use to hold 37.5 psi but just recently dropped to 25 psi.
C7 use to hold 37.5 psi but just recently dropped to 25 psi. Just replaced barrings and still only holding 26-27psi at operating temp... … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a 96 Kw with a c10, the front cover to block is
Hi, I have a 96 Kw with a c10, the front cover to block is leaking and for the price to have it repaired i can buy a 3406e so i am thinking about going that route, could you tell me if its feasable, m… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
I recently purchased a 1999 sterling truck with an 8.3 cummins
I recently purchased a 1999 sterling truck with an 8.3 cummins diesel engine. We had to install a new fuel injection pump and when we initially started the engine we had no oil pressure. We installed … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
1999 IH 4700 DT466E YH225743, Low power, runs good but feels
1999 IH 4700 DT466E YH225743, Low power, runs good but feels like it is pulling a heavy trailer. Won't go any faster than 60 mph @ 2750 rpm and it takes a while to get there. Builds 16 psi of boost an… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
Hi , i have 2136 cat 350hp marine. I want to know what oil
Hi , i have 2136 cat 350hp marine. I want to know what oil pressure psi should be on Idle and what psi on 2000 rpm? Thanks… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
I have a 99 cat 3406e that has had a recent rebuild when climbing
I have a 99 cat 3406e that has had a recent rebuild when climbing a big hill fully loaded the turbo boost hits 30psi and then drops to 25 and then climbs back up to 30psi it may do this all the way up… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
Oil pressure for ISX as I understand it is 35-40 psi @ rated
Oil pressure for ISX as I understand it is 35-40 psi @ rated rpm, what would be considered low oil pressure? At what pressure should we begin looking for problems.… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Cat engine 3406E, low oil pres,hot over the road at 1300-1400
Cat engine 3406E, low oil pres,hot over the road at 1300-1400 rpm rise to 54-55 in iddle only 30 psi In the morning cold the oil psi rise to 70 psi.one year rod bearing,no change oil pump.this engine … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
today we are working on a C-12 customer concern: low oil pressure
today we are working on a C-12 customer concern: low oil pressure after installing test gauge, we have 25-30 psi at idle 50 psi at high rpm concern #2- oil leaking out of turbo housing and exhaust tur… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
I have a 2005 VT365. The oil pressure hovers at 19 PSI when
I have a 2005 VT365. The oil pressure hovers at 19 PSI when in idle and it sounds rough. When driving the oil pressure hovers in a good range. When I restarted the truck after about 15 min of highway … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,975 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,975 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,400 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

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All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

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16 years of experience

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dieseldan55

Contractor

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Road Service mechanic for Volvo Construction.

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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.

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