Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I have a 2008 Navistar with SAHR canister issues. It applied
I have a 2008 Navistar with SAHR canister issues. It applied without warning while on HWY at 60mph and caused the truck to fish tail. I'm thankful there were no cars around me. After getting it to the… read more
Mike
Mike
Shop Foreman/Triage Tech
2,807 satisfied customers
2013 maxxforce 13 lost prime as soon it is shut off, when we
2013 maxxforce 13 lost prime as soon it is shut off, when we get it running it smokes and has a loss of power going down the road ck the codes and has a code for low rail pressure, replaced the fuel f… read more
Mike
Mike
Shop Foreman/Triage Tech
2,807 satisfied customers
I have a 1994 Isuzu NPR. 3.9 Diesel. One of the hoses, what
hello, I have a 1994 Isuzu NPR. 3.9 Diesel. One of the hoses, what seems from the fuel tank to the filter was leaking. I changed the hose. It started and ran for about 5 minutes and stop. It cranks bu… read more
Mike
Mike
Shop Foreman/Triage Tech
2,807 satisfied customers
I have a fleetwood discovery on frieghtliner chassis cat
I have a fleetwood discovery on frieghtliner chassis cat 3126e lost fuel prime after changing fuel/water separator filter … read more
Mike
Mike
Shop Foreman/Triage Tech
2,807 satisfied customers
2016 DD13 LOST FUEL PRIME, 2016 DETROIT IN A WESTERN DD13,
EVERTHING IT SEEMS WHEN U PRESURE THE TEST PORT THE FUEL JUST RUNS BACK TO THE TANK … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have an ASV RC50 - early 2000's sn about 1028 with a CAT
I have an ASV RC50 - early 2000's sn about 1028 with a CAT 3024c engine. Starts right up and responds to throttle positions when cold. after 10 mins when warmed up starts erratic rpm (revs, almost die… read more
Mike
Mike
Shop Foreman/Triage Tech
2,807 satisfied customers
No fuel pressure. CAT C7. 2004 GMC 8500 C7. Checked fuel
Checked fuel pressure after secondary filter and registered zero. Changed primary and secondary filters, still zero pressure. Loosened fuel line going to intake after secondary filter, fuel dripped out. Took off fuel filter mount and blew and cleaned it out. Hooked it back up with no filter on and cranked engine, filled up with fuel very very slowly. Probably 15 minutes of on off engine cranking. … read more
Mike
Mike
Shop Foreman/Triage Tech
2,807 satisfied customers
UNIT EQUIPPED WITH A C7. TRUCK IS HARD STARTING/LOSING
UNIT EQUIPPED WITH A C7. TRUCK IS HARD STARTING/LOSING PRIME. IF YOU PRIME ENGINE AND GET IT STARTED, TRUCK RUNS FINE WITH NO ISSUES. LET UNIT SIT OVERNIGHT AND IT WILL LOSE PRIME AGAIN. NO SIGNS OF E… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have 2005 cat c7 changed the fuel filters and can't get it
Hi I have 2005 cat c7 changed the fuel filters and can't get it primed … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I am working on a 2009 GMC C5500 with a 7.8L isuzu engine.
I am working on a 2009 GMC C5500 with a 7.8L isuzu engine. It was towed in with a low power concern with check engine light and would not go over 35 mph per the customer. The engine light was on due t… read more
Chris Carr
Chris Carr
Ase Master
Ase Master Tech
463 satisfied customers
I have a deere 4500 with about 1000 hours on it. The other
Hi Dan, I have a john deere 4500 with about 1000 hours on it. The other day I was bushhogging and ran it out of diesel. I re-filled it and it primed but would die every once in a while. It has gotten … read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,321 satisfied customers
04 International HT530 motor wont fire, Cant prime it, Have
04 International HT530 motor wont fire, Cant prime it, Have done the bleeder valve and got nice stream a fuel. Almost wants to fire, If I leave it overnight the fuel filter empties a bit like it sipho… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
My Toolcat 5600 quit running and wont start. May have run
My Toolcat 5600 quit running and wont start. May have run out of fuel. I changed fuel filter, added fuel and opened the bleed valve located below the seats. Have turned it over numerous times but no l… read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,321 satisfied customers
I have a Mercedes mbe4000 in a 2005 freightliner Columbia.
I have a Mercedes mbe4000 in a 2005 freightliner Columbia. It will be running fine and then just start losing power until you get down to about 25 or 30 then it will finally pick back up and go again.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Wayne, I've got a '93 volvo white gmc with a 60 series
hello wayne, I've got a '93 volvo white gmc with a 60 series detroit. It usually cranks for @ 4 seconds and fires right up. It has been sittng for @ a month, now it cranks but will not fire. I'm not s… read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,321 satisfied customers
Name is nate, working on an 01 isuzu nqr 4.8 turbo.... sadly
Customer: name is ***** ***** on an 01 isuzu nqr 4.8 turbo.... sadly i took this on with no idea of the mess i was in for. i am an indy mechanic, dont mess much with diesels and as you know getting di… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
Working on an 06 GMC W 4500 5.2 l4 having fuel issues
Working on an 06 GMC W 4500 5.2 l4 having fuel issues intermittent no start and stalling. Followed a few flow charts in a tsp flowchart came up with a few ideas would like your guys help to come up wi… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have been having problems with my 1995 6.5 GMC box van. it
I have been having problems with my 1995 6.5 GMC box van. it is military surplus. It has been starting and dying a half block away after sitting for a couple of hours. I changed the fuel filter and tr… read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,321 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Owner at DJ Wilson

Cat Man

Cat Man

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I am ASE Master Truck Certified.

Wayne

Wayne

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

Jeremy

Jeremy

Certified Truck/Bus Technician

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

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cumminsdr

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Chris (aka-Moose)

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dieseldan55

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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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