Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a Perkins 4.236 in a Hyster forklift. The head,
I have a Perkins 4.236 in a Hyster forklift. The head, injectors, and injector pump have been rebuilt. It has only been started twice since reassembly. It reluctantly starts with great difficulty if t… read more
Curtis B.
Curtis B.
Technician
Associate Degree
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I have a 1999 International 4900 dump truck with DT530e
I have a 1999 International 4900 dump truck with DT530e engine and an Allison MD3560 transmission. recently it developed a ticking noise under load, loss of power, and higher fuel consumption. To me, … read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
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I have a '98 Freightliner Century with a 12.7 liter 60
I have a '98 Freightliner Century with a 12.7 liter 60 series Detroit. I just pulled the head (head gasket failure) with the intent of installing a reman head and new gaskets. The concern/question I h… read more
Roy Belding
Roy Belding
7,519 satisfied customers
2006 International 4300 with DT466E engine. I frame overhaul
2006 International 4300 with DT466E engine. I frame overhaul done. Still has light smoke after 2 hours running. Truck is a fuel truck at airport so no way to run at speed for any length of time. Had 2… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
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2009 international work star having some major issues with
2009 international work star having some major issues with pushing coolant into over flow and not sucking back into coolant system then low coolant light turns on have to. transfer coolant and is good… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a Cat 3406E in a 1995 Peterbilt 379. Just recently,
Hello, I have a Cat 3406E in a 1995 Peterbilt 379. Just recently, the head was repaired, installed new bearings piston rings, liners, and head gasket. Had the over head done but it idles a little roug… read more
Eddy
Eddy
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GED
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2013 isx15 3375 fault. Excessive regen. 2013 peterbilt 386.
Exhaust removed, when you rev up and let off the throttle engine white smokes just before it comes back to idle. Replaced fuel control valve, fuel rail pressure sensor, egr diff pressure sensor, exhaust back pressure sensor. Cleaned egr cooler and valve, adjusted valves. Updated software. Cleaned dpf. Doc is spotted. Not horrible. Dpf looks good. 240,000 miles smoke smells like fuel. Driver recently claims engine is used by oil. Unable to verify yet. Regen log shows every 2 hours. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 1988 Volvo tandem grain truck with an L10 Cummins
I have a 1988 Volvo tandem grain truck with an L10 Cummins engine. It was fully rebuilt at roughly 950,000 km when I purchased it in 1998. It was very trouble free and performed well but slowly began … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have a 1995 Freightliner FLD with series 60 Detroit. It
Hello there. I have a 1995 Freightliner FLD with series 60 Detroit. It has 482000 miles on the rebuild. The problem I'm having is this, the #1 injector cup seems to keep failing. Last Novemer, 2015 th… read more
Roy Belding
Roy Belding
7,519 satisfied customers
1999 International 4900 DT466e my guy was driving, heard an
1999 International 4900 DT466e my guy was driving, heard an audible pop from the engine, lost power. He coasted to a truck stop about 1/8 mile away. As he pulled in the truck died and we couldnt get i… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 3406 have a new head and had bottom half redone all
I have a 3406 have a new head and had bottom half redone all new liners motor ran great was sitting for a while then 1 at day an hour driving it started smoki g white got hydro locked I found out old … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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3406E 2WS started using water after low coolant pulling very
3406E 2WS started using water after low coolant pulling very short steep grade and got hot. water light came on just as or after it got hot. started loosing water out overflow. bubbles on bubble test … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
2WS Motor 550 Cat, New Injectors - o-rings, new turbo... reman
2WS Motor 550 Cat, New Injectors - o-rings, new turbo... reman head. I am having issues when its sitting idling for a long time 30+ min 1-2 Hours it will blow blue/white smoke after idling for a first… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
Hey Cat Man. Customer brought me a truck back in January. It
Hey Cat Man. Customer brought me a truck back in January. It is an older truck with a 3406(7FB). It had a miss and was running really bad. Long story short, pistons 1 and 2 were severly damaged. Pisto… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I have a 6NZ and blowing blue smoke, we have changed the #4
I have a 6NZ and blowing blue smoke, we have changed the #4 injector, we did change this injector because of performing a cut out test on each cylinder. After replacing the injector setting the valves… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
I had an inframe done on my 3406E and picked it up and as
I had an inframe done on my 3406E and picked it up and as I was pulling out of the shop my 96 Pete had white smoke blowing out of both stacks , breather and oil filler tube. I lost 6 gallons of antifr… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
International 4700: oil leaking out of exhaust ports 4, 5,
oil leaking out of exhaust ports 4, 5, 6 only. All valve seals have been replaced, 3 new injectors installed and a new turbo installed. Put back together, started and still have smoke out the exhaust … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
We have a 99 pete 379 with caat 3406E...recently had to have
We have a 99 pete 379 with caat 3406E...recently had to have cam, head gasket and head replaced..been back to the shop twice, still had oil leak and having to put in1-2 gal coolant every 2500 miles...… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,221 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,221 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

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

Jeremy

Jeremy

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2,740 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

Curtis B.

Curtis B.

Technician

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

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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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