20 Most Recent 1989 Chevrolet Silverado 2500 Questions & Answers

Question edited for clarity and add maker. Question moved to model category.

Q&A: 1989 Chevy Silverado Power Steering Pump Removal

JustAnswer https://www.justanswer.com > Chevrolet Repair Feb 17, 2008 - you need to remove the belt getter a power steering pump pulley pulling kit and remove the pulley unbolt the lines unbolt the pump reverse ... ..

possible crank/cam shaft position sensor run the fault codes

i really know anything about a powerbooster

Slide in under the truck just behind the cab on the drivers side and look up INSIDE of the frame rail and you will see it.

there is a daytime running light module located under the dash to the right of the steering column

Check and clean the egr valve and passages beneath it. Here is a listing of GM OBD1 codes:

Start by checking the bulbs and the sockets and the wiring. look for discoloration and bare/ cracked wires. Fix or replace as necesary.

Sounds like you have two problems, rough idle from an 89 would indicate mutliple problem possiblilities. Spark plugs, timing chain, injectors, coil pack, vacuum hose corrosion. Start there and if that doesnt solve the idle issue its time for a mechanic or a trade in.For the no downshift, slow down lol. It could be an out of spec throttle cable. Check to make sure the cables are free and clear of debris and no kinks are present. The throttle linkage should move freely while the engine is off and again while running, be careful here. Unfortunatly we may have to face the truth the old girl just doesnt have it in her anymore. Take it slow and easy, shes earned it.