Medium and Heavy Trucks

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I have a 18hp intek i have replaced plug fuel filter air
I have a 18hp intek i have replaced plug fuel filter air filter fuel lines adjusted coil to .012. Engine starts right up runs fine for 15 or 20 minutes then stalls. … read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
We have a ‘81 IH 240A with a D179 engine, we replaced the
We have a ‘81 IH 240A with a D179 engine, we replaced the fuel injectors with rebuilt ones cause one was leaking fuel where it sits in the head. Now it runs rough between 800- 1100 rpm like its skippi… read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
We set up and looked to start our generator for the first
We set up and looked to start our generator for the first time today. Went through all the steps and it started, but in a very sputtery way. There was some gray smoke, more sputtering (it never did ru… read more
RyanY78
RyanY78
Vermeer field service technician
Heavy equipment technician
189 satisfied customers
I. Spar marathon model 1556400 not sure it old but I have a
spar marathon model (###) ###-####not sure it old but I have a gas ladder hoist that will not turn over or crank l put new spark plug new oil not sure why it does not crank over … read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
Recently purchased a new 54 inch zero turn mower that was on
recently purchased a new 54 inch zero turn mower that was on clearance. Has a 25 hp pro briggs engine that surges and backfires, will likely have to find a dealer. … read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
It sat for years in a field and I voted it running and it
It sat for years in a field and I voted it running and it ran pretty good then it died and now no spark I changed the cap rotor and the deraspark ignition and still no spark what else could it be … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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My generator started ran for 5 mins then just stopped. I
My generator started ran for 5 mins then just stopped. I tried to pull cord to restart, but the cord wouldn't budge. I took off cord and checked spring all ok. Rebound cord. I checked the air filter a… read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
I have a 3150 cat in a 2255 Oliver tractor that's getting a
I have a 3150 cat in a 2255 Oliver tractor that's getting a lot of fuel in the oil, ran the engine with the valve covers off to check the injector lines but no visible leak there. Where else can fuel … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,306 satisfied customers
I have an older yale fork lift with a four cylinder motor.
I have an older yale fork lift with a four cylinder motor. it runs on propane. it wont start some times and wont run hardly once we get it started.other times it starts fine and runs good. it wouldn't… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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My WD45 has been running fine. mowed 10 acres of grass and
My WD45 has been running fine. mowed 10 acres of grass and suddenly it began backfireing and missing, … read more
Daniel Wilson
Daniel Wilson
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We are having cold weather problems with our forklift powere
We are having cold weather problems with our forklift powere by a Cummings QSB3.3. CM 2250 EC. Less than 150 hours on a 2014 Skytak . We suspect egr system. Puffs huge cloud of black smoke, rough idle… read more
Mike Mcmillan
Mike Mcmillan
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I have a 2000 hyster h50xm no power and runs rough. H50XM
Hi I have a 2000 hyster h50xm no power and runs rough … read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
The AC on my Komatsu excavator works fine when I first start
The AC on my Komatsu excavator works fine when I first start it up and may work for 3 or 4 hours then it starts to blow hot air. Is this likely to be caused by the thermal expansion valve … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a Ford 641 that stopped running - at first it was
I have a Ford 641 that stopped running - at first it was running fine, then when i fixed the fuel shut off under the gas tank, it began to shut off after a few minutes, then completely quit. I've clea… read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
My bobcat 632 doesnt start. Turns over, sparks to spark
My bobcat 632 doesnt start. Turns over, sparks to spark plug, gas to the gold float? Cecked battery and it isn't holding a charge. Could that be the problem … read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
A friend hs a 1992 GMC Topkick Lopro with a 366 V-8. Truck
A friend hs a 1992 GMC Topkick Lopro with a 366 V-8. Truck has been sitting in a lot for three years without a battery and has not been started. I put a battery in this afternoon and cranked her over.… read more
Curtis B.
Curtis B.
Technician
38,992 satisfied customers
Farmall 460 starting problem. it starts and runs for a few
farmall 460 starting problem. it starts and runs for a few seconds and then quits. if attempt to start it will not start until you wait for along while then runs for afew seconds and quits. … read more
Curtis B.
Curtis B.
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38,992 satisfied customers
Timing procedure for 1973 S1700 with a 392 V-8, holley 4
Timing procedure for 1973 S1700 with a 392 V-8, holley 4 barrel carb, and holley dist, runs great, then all sudden, runs rough, backfires etc. Ex-military with only 1215 miles, I re-build carb, and ne… read more
Curtis B.
Curtis B.
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38,992 satisfied customers
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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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