Top 20 1988 GMC S-15 - Page 7 Questions & Answers

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Pull the rear wheels,take off the diff cover,remove the 5/16 pin that holds the big pin,pull the big pin ,push in on the axles,remove the 2 c clips that are on the axles and slide the axles out.If the axle shaft is worn by the bearing,an axle -saver bearing is available. If the axle is ok just pull the seal ,drive the new one in and re-assemble.

First check for 12-12.6 volts at battery if you have 12 volts at battery then,check for 12 volts at starter power cable if you have 12 volts there then check for 12 volts on the switch side of starter solenoid ( purple wire ) this should get you started in the right direction.Let me know what you find out.

Go to autozone.com they have a section where you can look up all that stuff

turn on your headlights, then....Go to the back of your truck or car....Take a test light and find your hot wire....hook your tag light into the wire you found....this also works in the front of you vehicel...
Hope this helps you ???

Replace the catalytic converter, it's plugged.

The TPS goes right across from the throttle cable on the throttle body. Please rate this. Hope this helps, James Booth

When was last tune up? Plugs, wires, ALL filters & fluids??? Especially fuel filter. I'd start there and run a good fuel system cleaner through it.

Helm.com

Got to buy it

pull for hi push all the way for low

The starter is shorted - you will have to replace it and the battery. Next check the wires between the starter and the battery and the battery and the body of the car - they might have been damaged by the overheating caused by the huge current passing thru them. Then check the ignition key contacts, when you shorted the plots a part of the current might have went thru it and damaged it - in that case you will have to replace it also.

You might have lost ground at the sending unit. Make sure everything is plugged in. You might have a defective dash voltage meter or a bad sending unit. Since it went out when you changed it, make sure all is plugged in and you have ground on the sending unit. If you need anything, let me know. I am here to help.

may be electronic ignition module mounted to side of distributer down low replace unit.

go to local parts house an get the rite harness for your truck look under back of truck unplug harnes an plug your kit in between factory harness

Fuel pump relay inside the glove box is kaputz? http://www.ehow.com/how_5486354_replace-jimmy-fuel-pump-relay.html

Fuel pressure regulator is usually located on the fuel rail at one end.

should be under the hood by the batt. also on tthe sides of the dash or under the dash

the best thing for you to do is stop by your local library and get your hands on a Haynes auto repair manual for your truck wish you the best of luck Michigan Man.also like to give you this information if you every have any hard to find GM-parts its Schram auto & truck parts they only sells GM- parts 1-800-292-1032 and they website is www.schramauto.com

the autochoke warning light by your description ,ask advice from a local mechanic preferably one with grandchildren so he will be old enough to remember these cars when they were new and will know exactly whats what

look at the front of the vevicle to the left near the rear of the headlight