20 Most Recent 1990 Chevrolet Suburban - Page 3 Questions & Answers

If its not working at all try this. Find it up under the passenger side of the dash. They are a real treat to get at. With the key on and the blower speed setting set to high tap on the blower motor. If it starts working replace it. If it doesn't start working let me know and I'll get you some info to check wiring. I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

If you haven't already done so, replace the distributor cap and rotor. There is most likely corrosion inside the cap that is causing a crossfire condition.

This is a common problem on that engine.

Don't know why being hot would aggravate it, but start with the cap.

Check to see that you did not accidently unplug the vacumn to the Map sensor

Yes, it going to be your water pump....if you buy one, make sure it is the right rotation....They make a left and a right.....

That wire is suppose to be disconnected. It is a tach connection. Will it start if you spray carb cleaner in to the throttle body?

you can go to any auto store just make sure you bring the vin # with you and the year

Have someone try to crank engine over while someone else takes a hammer and tap on center of starter motor if engine starts then the bendix is bad in the starter.Replace starter.

if everything is out of way inside- check under hood to see if nipples were siliconed in where the hoses attach- also sometimes there is bead of adhesive behind core holding it in place

battery is dead, jump start vehicle and then drive to nearest auto parts store and have them check your charging system, which is free, you can purchase a battery there and they will install it for free, Tim

I sounds like the ground wire for the rear lights was broken or disconnected.
There is probably only one ground wire for all the rear lights, and I suspect it is in the back.
Try to trace the wires, as best you can. It's possible there is also a common ground connection for the gas tank gage and pump.

Hello rarebird9,

To replace the fuel pump you must take the tank down.

Regards,
netvan

if your sure it is not a fuel problem,do you have spark, if not i would have the ign coil and ign module tested.if you have spark i would say it is in the timing.

When you hook the bypass wire back up do you loose spark, injection pulse, or both?

This is what'll happen when the kick-down cable breaks. This needs to be fixed, and all should be well after that!

I hope this helps :)

Could be the switch is bad, check to see if there is power to the switch with a test light. If there is no power there you have a wireing problem.

well there is no fuel pump primer that i know of. When you turn the key you should hear the pump
come on. If you do then you should hear a medium high pitch sound. If you hear something other than that you got a block in your line. O one there thing you can try if you hear the pump\primer come on is take the fuel line off that is suppling the intake and see if your getting fuel from the tank
to your engine. If you don't then you need to blow out your line and filter with a air compresser, but do it carefuly. You dont want to mess up your filter or your lines ok. I hope this works for you.

If the ABS fails, the brakes will lock up when you brake hard enough to have needed the ABS system to engage. The ABS works by sending a pulsing action through the brake system when you brake hard enough to lock up the wheels.
In the old days before ABS we used to have to pump the brake pedal to achieve a pulse in an attept to keep from locking up and sliding. The old way of doing it is no where near as effective as modern ABS.
You should never pump the brake pedal on a vehicle that is equipped with ABS. If your ABS has failed, yours and others safety is at risk. Get it fixed ASAP.