20 Most Recent 1994 GMC Sonoma - Page 7 Questions & Answers

look under hood on fire wall ,you will sometimes see a black cover near drivers side,motor is mounted with two or may have 4 bolts holding motor on ,on front of motor you should see one small nut holding linkage take it off to remove motor

open the tailgate and on the bed next to the taillight there will be two torx or phillips head screws that hold the lens in

Try checking the gauge inside the truck
If it reads wrong - not to worry - just carry on as it is.

Try turning everything on - then CAREFULLY remove the NEGATIVE battery cable - if the truck continues to run WELL - the problem is most likely the gauge.

Check it the local battery store - free.

Gary @ Fix Ya.

TEST IF THERE IS POWER GOING INTO THE COIL. A FAULTY IGNITION CAN ALSO CAUSE THIS PROBLEM AS IT DO NOT ALLOW CURRENT TO THE COIL.

change fuel filter- if still rough- check catalyic converter

First check battery voltage if not 12-12.6 charge or replace battery,then with a fully charged battery start truck take multimeter and check alternator voltage it should be 13-14.5 volts if its anything less replace alternator.HOPE THIS HELPS!!

Did it do this before you installed the fuel filter? If it did not, then you might want to double check and make sure the fuel filter was installed in the correct manner. They do go in a specific way.
goodluck

what about this wire?

Check your timing belt and timing. It sounds like your timing is off. If not, have your fuel pressure checked. It may be time for a new fuel filter. I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

one is inlet and one is outlet, if you reverse them you could push any sludge or **** that is stuck in them back through the system. i wouldn't recommend it.

That all depends on the leak. Either way you have to remove the tank. Using a large piece of wood that is about the size of the bottom of the tank, and a floor jack, slowly remove the bolts at one end of the straps which hold the tank in place. Make sure the tank is firmly supported. Take thke bolts out of the filler neck by opening the filler door, there should be three bolts, and if possible remove the fuel lines and the electrical plug before youstart bringing it down, Lower the gas tank slowly. If it is the sending unit, there is an o-ring that seals it in the gas tank, if it is a hole in the tank, you can try a repair kit, but in my experience, it doesn't work all that well.

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4.3L engine. Firing order: 1-6-5-4-3-2 . Distributor rotation: clockwise

There will be two of them.
One right after the manifold coming off the engine in the exhaust pipe
The second on is halfway down the vehicle in the exhaust under the car after the firewall
Please let me know if this helps

sounds like a bad heater core usually located under the dash and stereo

Open the hood. Those vehicles have a buss bar on the inside of the drivers side front fender. ( a buss bar is a strip of plastic, housing locations for wiring connectors running to various components on your car. They are secured to each post by a phillips head screw.) One of those locations is the "hot" for your fuel pump. If by chance you have an exposed section of that wire touching metal somewhere, it will blow the fuse. maybe someone has wired something else to it...causing it to blow.

theroadisalover

Try to post back and let me know If I helped you solve your problem. It will help me with my rating....! Thanks

Hi, I'm not sure what those codes stand for or what part(s) the codes are referring to but a local parts store in your area should be able to look it up and tell you. My experience with checks engine lights coming on have always been because of the oxygen sensor. Good luck if you haven't found your problem already.

Please see my tip at http://www.fixya.com/cars/r6222268-engine_doesnt_crank_turn_over . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Sounds like your truck is misfiring.I would check your sparkplugs and spark plug wires. If they look good its probly a its probly a coil pack. There are 2 of them and they should be located together on passenger side of motor. easiest way to get to them is probly take off passenger front tire and list up rubber flap and they should be right there. only bolts per each one.

check starter relay them wiring to starter