20 Most Recent 1990 Chevrolet K1500 - Page 8 Questions & Answers

It wIll be located In the vehIcles fuse box. usually when you open the drIvers sIde door or under the dash on the drIvers sIde.

You may have left the backup light connector off the transmission or damaged the wiring to it, go under the truck and reconnect it to the sensor that is screwed into the case of the transmission.

check the rear brake adjustment and clean out all the brake dust.this can happen if the brakes are not adjusted properly as the misadjusted side will pull the brake shoes into the drum and act like the brake is on.if it was an abs problem or sympton the abs light should have come on to indicate a problem depending at what speed it happens.

Look for a heater control relay in the fuse panel. It may be under the hood. If you see another relay that is the same swap the two around. Will the fan now go off? If it does the relay contacts have welded shut. Take the relay that was bad to a parts store and get a new one. I hope this helps. Please rate my answer so I get points for it.

You might have a bad or loose ground. Check the fuse box ground and make sure you have a good connection there. Post back if that isn't the issue.

DO you have a remote car starter? they can short out all kinds of electronics in a vehicle, try unplugging it.

if steering column mounting bolts is tight and steering column still feel loose you need to replace steering column.

Check coil for spark. Which type if Dist does it have? Should have High Enegry which are know for modueal in the dist going out.

You have to take off the door panel. You will see three nuts on the other side of the mirror. There should be some sound proofing that you will need to pull out to see them. It's pretty easy once the panel is off. Good luck

make sure you are using a good belt, Dayco or Ggoodyear, the less expensive belts will stretch in a short amount of time

take a look at the front drive axle joints and also wheel bearings. this noise may be due to a bad ujoint and as you turn the joint binds up and makes noise, same as a bad wheel bearing. the wheel bearing would make more of a grinding noise as it doesnt hold the wheel and brake rotor in place and the rotor may be hitting the caliper bracket so i would start by checking this stuff first. good day.

If it only has PRND21 it could be the turbo 350, the turbo 350 is a 3 speed auto, with park, reverse and neutral

Sounds like a simple case of bad, damaged, or disconnected Engine Coolant Temperature (ECT) sensor to me.

Also review this article:
What Else Could Be Wrong?

Throttle body injection? replace the injectors. First check for power to them. 12 volts from one of the wires with key on

Sounds to me like your injectors are dirty. I took mine apart and replace the "O" rings and it stopped.

I have a special tool that I bought just for this problem. I don't remember the name or brand of it since I've had it for many years but a good parts store should be able to get you one. It consists of a guide and a drill bit that allows you to drill into and remove the broken end of the bolt. Might be a few variations of the tool design but that's the basics of how it works. Hasn't failed me yet. Always put in a NEW bolt even if the old bolt comes right out as these things like to break off if used the second time. Wish I had a name for you but I don't even have the box the thing came in anymore. Hope this helps and good luck!