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Driver side rear shock is leaking oil the set only has about 2500 miles on them? they are coil over shocks.
Hello. A shock is not always bad, but if you see some residue oil leaking from the shock then it may not be functioning fully. If you see a really wet and dripping shock, then it should be replaced. The...
Fuel pump always running - 1995 Chevrolet K2500 Suburban
Your fuel pump relay is only used to power the fuel pump at startup. After the engine starts, the fuel pump receives power from the engine oil pressure switch on the lower left side of the engine. When fuel pump...
Whistling noise over 40mph, car downshifts hard - 1996 Chevrolet K2500 Suburban
The transmission on these vehicles have many different possible problems and it sounds like you have an overrunning clutch bearing that is bad, which is causing it to make noise after 40mph. The problem downshifting may also be due to...
Ocassioanl stalling at idle, RPMs fluctuate at idle - 1995 Chevrolet K2500 Suburban
You either have a leaking injector that is dripping fuel after you shut off the engine and causing a flooded engine and will cause the hard start and erratic running conditions. You could also have a fuel pressure regulator or...
Do I have a problem with the electrical system?
Hi, thanks for writing in. The charging system is not very complicated. If the alternator and the battery are absolutely 100% good, no doubts about it, then the issue is likely a bad ground. Both the battery and the alternator...
My truck won't crank? 1996 Chevrolet K2500
Hello. If it starts with the rag, then it is a fuel-related issue. I usually check the fuel pressure just to make sure it is fine. If it is, then I check the injector pulse at the fuel injectors. If...
I'm losing antifreeze somewhere
You would need to have the cooling system checked to see if a head gasket is leaking internally, or there is an external leak that is causing the coolant loss.
Car idles rough, hesitate from a stop, shuts off going uphill
Hello there, this is a common fault on the Chevy K2500. There are many different possible causes for the engine to idle rough and have poor gas milage. The most common are the spark plugs, plug wires, cap & rotor,...
The left wheel on the rear end lock up
Hello there. This is not uncommon on the Chevy K2500. There are a few possible causes for the wheel to get locked. The most likely would be low differential fluid, differential side gears, a ring and pinion failure, or a...
Transmission slips while going downhill, when braking or coasting
Hello there, issues shifting when going downhill is a bit unusual for the 1998 K2500. There are a few possible causes for the transmission to slip when going downhill. The likely would be that the transmission fluid level is low,...
Screeching chirp noise engine - 1991 GMC K2500
Hey there. The A/C pulley bearing may be binding causing the chirping. Try spraying each belt one at a time with some water in a spray bottle. The noise will change or go away when the belt that is chirping...
Rear brakes not grabbing - 1995 GMC K2500
Hello. It is not in the ABS, but may be the proportional valve not giving the correct pressure split front to the rear. The vehicle never had enough pressure for the rear brakes. Have the rear shoes adjusted properly if...
Stuck in Park gear - 1997 GMC K2500
Hey there. I would check to see if your vehicle brake lights work. The shift lock needs the brake switch to activate and the shift lock solenoid in the steering column. If you do not have brake lights, then you...
Shifts early jerks engine - 1994 GMC K2500
Hello. You will need to remove the EGR valve to clean out the carbon and then decarbonize the engine. The code 28 may be due to the transmission or transmission module controller PCM has a bad internal driver to control...
Dimmer light not working - 1991 GMC K2500
Hey there, thanks for writing in about your 1991 GMC K2500. You should have power on the white wire, dark green wire, and also the brown wire when the dashboard lights dimmer is turned on. If you need help having...
Possible fuel pump problems?
Assuming you have the stock equipment still in your truck, it should have come with throttle body fuel injection and not a carburetor. If this is the case, you likely have a low fuel pressure issue that is preventing the...
Went to take the gas cap off and it blew air out.
Excessive pressure inside the fuel cell could be caused by a clogged EVAP canister. This system is designed to filter vapors from the fuel tank for environmental reasons. If the canister is full or the purge solenoid is damaged that...
The truck is from Georgia which doesn't have smog control. In California it won't pass smog. It has a new motor and transmission.
Hi, the blue-grey smoke you mention is your engine burning oil, probably due to worn piston rings or valve guides and seals. This is expected from an engine with 300K miles on it. Unfortunately for you, California has pretty stringent...
Burnt wires leading to tail lights.
Hi - wow, what a challenge! Regarding the reverse lights being on all the time, I would check the reverse light switch on the transmission. I suspect it is stuck in the "ON" position. Regarding the fuel pump being inoperative,...
Will front suspension parts (other than hubs) from a 6 lug k2500 work in an 8 lug k2500?
Hello. The difference in the lugs is bases on the weight or tonnage of the truck. The suspension is built based on this. If you truck is an 8 lug then you should only use the parts that are made...

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