20 Most Recent 1990 Chevrolet Suburban Questions & Answers


You will have to trace the wiring. There is a short somewhere before it reaches the actual horn or light. Horns pull an extreme amount of amperage. The relay may be stuck or the wiring to the switch may be bad. My bet would be a shorted switch or relay.

1990 Chevrolet... | Answered on Dec 12, 2017


You need to be more clear about what you did. Red wire to the casing? Is the radio and all of that ok now? The more detailed info the better help you can get.

1990 Chevrolet... | Answered on May 18, 2017


You need to put a mark on the dist. and one on the firewall so when you drop the dist. back in the marks line up and maintain the engine timing, also do not move the oil pump shaft the dist. goes into. When replacing the intake gaskets you will need to use rtv in each corner (front and rear each side) on the china wall to seal rubber seals for the front and rear across the intake area. If you did not get the rubber seal across the china wall you can put a heavy bead of rtv across and seat the intake in it, just don't move the intake after seating it on the engine. Hope this helps.

1990 Chevrolet... | Answered on Apr 19, 2017


Transfer case is bad. My first guess. If the transmission were bad it wouldn't move at any position. Is there any noise? You have 4 possibilities, Front and rear differentials, transfer case, and the transmission.

1990 Chevrolet... | Answered on May 06, 2015


replace ignition switch down on the colum(not key and cylnder

1990 Chevrolet... | Answered on Aug 12, 2014


You installed the wires wrong

Should have made a diagram before
removing the old ones

Google a picture of the wiring

1990 Chevrolet... | Answered on Jul 26, 2014


remove inside door panel,when you look inside where the door handle is located,you will see a little rod.pop the rod out of the socket and turn adjustment piece.you will see threads on the long part of the rod.adjust rod.it will be trial and error until you have adjusted the stroke correctly. thank you.

1990 Chevrolet... | Answered on Jun 01, 2014


Do you mean the outside latch handle or the inside one.. ?? if the outside one you will have to release the door manually .. which means you will have to take off the inner door panel and find the rod that goes to the latch,, follow that rod and you will find the latch.. release it open the door and replace the handle.

1990 Chevrolet... | Answered on Jun 01, 2014


1990 models is safty only here in nc, so it should pass. FIM is not likely..Cats and O2 senors very likely. Your solution can sometimes in few cases help

1990 Chevrolet... | Answered on Dec 12, 2013


Rebuild the throttle. Change the throttle position sensor iac motor and mass air flow sensor. You may have to replace the cpu

1990 Chevrolet... | Answered on Apr 14, 2013


Yes, the brake light signal on American cars is routed through the turn signal switch. A new switch should restore both your turns and your brake lights.
American cars use the same bulb filament and same wire to the rears for both brakes and turns. Press the brakes when turning and both rear brakes will light, but since one side travels through the flasher relay, that side will blink, while the other side has a steady light.

1990 Chevrolet... | Answered on Apr 06, 2013

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