1990 Chevrolet Suburban - Answered Questions & Fixed issues

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1990 Chevy Suburban V1500. It stalled when I was driving and it won't start. I have replaced everything. It turns over, the lights work, but it won't start unless I spray it.

Question edited for clarity, typos, real sentences and stuff. Question moved to model category. By 'spray it', it presume you mean spraying with Easy Start? If so that means you have a fuel delivery issue? Check the following You have fuel in the tank. The fuel pump relay is operative. The fuel pump works and you have the required fuel pressure. ..
2/3/2024 3:48:00 AM • 1990 Chevrolet... • Answered on Feb 03, 2024 • 27 views
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Have a short in the

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.
12/12/2017 4:22:33 AM • 1990 Chevrolet... • Answered on Dec 12, 2017 • 856 views
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Lost all power to radio and lights when I hit a bump

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.
5/18/2017 2:31:51 AM • 1990 Chevrolet... • Answered on May 18, 2017 • 52 views
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Intake manifold gasket leaking

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.
4/19/2017 12:34:17 AM • 1990 Chevrolet... • Answered on Apr 19, 2017 • 80 views
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I have a 1990 Chevy Suburban 1500 4X4 with a 700r4 and it just will not go in to drive or reverse in 2wheel drive but when in 4wheel drive it moves in drive but it does move at all in reverse. What is

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.
5/6/2015 5:29:16 PM • 1990 Chevrolet... • Answered on May 06, 2015 • 276 views
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My 1990 chavy Suburban is having poping noise

You installed the wires wrong Should have made a diagram before removing the old ones Google a picture of the wiring
7/26/2014 2:42:49 AM • 1990 Chevrolet... • Answered on Jul 26, 2014 • 102 views
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Door latch will not open on a GMC Yukon

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.
6/1/2014 6:46:48 PM • 1990 Chevrolet... • Answered on Jun 01, 2014 • 96 views
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Door latch on a GMC Yukon will not open

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.
6/1/2014 6:29:24 PM • 1990 Chevrolet... • Answered on Jun 01, 2014 • 189 views
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My check engine light is on,I could not pass my smog test,I was told it could be the cat & fuel injector module board?

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
12/12/2013 10:59:13 AM • 1990 Chevrolet... • Answered on Dec 12, 2013 • 64 views
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The truck dies in reverse all the time and the idle gauge fuse keeps popping.Why?

Rebuild the throttle. Change the throttle position sensor iac motor and mass air flow sensor. You may have to replace the cpu
4/14/2013 6:25:40 AM • 1990 Chevrolet... • Answered on Apr 14, 2013 • 160 views
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I have a 1990 Chevy Suburban v1500. All lights work except for the Brake Lights and Turn Signals. The Blinker switch on steering column is broken, other than that everything is fine.

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.
4/6/2013 9:44:37 PM • 1990 Chevrolet... • Answered on Apr 06, 2013 • 584 views
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My differential may have broke on my 1990 suburban how much to fix

So you saying you had a gear oil leak,didn't know it & the fluid leaked out &ruined the gear set & or bearings?That won't be cheapWere in the at home social chat room hereSo only a repair shop can get into prices
3/27/2013 3:33:44 AM • 1990 Chevrolet... • Answered on Mar 27, 2013 • 130 views
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Differential broke whats it going to cost to fix

you have to call around do price check.
3/26/2013 5:29:20 AM • 1990 Chevrolet... • Answered on Mar 26, 2013 • 117 views
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1990 350 suburban keeps stalling when at stop lights seem to idle down then stall

clean your throttle body.check for codes; you might have a map sensor problem, or your tps might have a dead spot. 9 times out of ten it is a dirty throttle body; the iac can't react fast enough to regulate air when the small gap adjustment of the throttle body gets contaminated with a tarry buildup.
3/22/2013 5:57:09 PM • 1990 Chevrolet... • Answered on Mar 22, 2013 • 360 views
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Just bought a 1990 5.7 suburban, need to get it smogged but not sure if the service engine soon light is same as check engine on this truck? I looked at another instrument panel same year and don'

disconnect your negative side of the battery and try cleaning your iac valve, and your egr valve, reconnect your battery and see if the light comes back on, give this a try it might work
3/18/2013 3:07:37 AM • 1990 Chevrolet... • Answered on Mar 18, 2013 • 126 views
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Cant pass smog!!! I know i know, too many people ask this same question. i know enough about my engine to diagnose it myself but this has me stumped. on first and second gear the nox is too high. im d

We do not have emissions testing here, so I can't give specific advice on reducing nOX, but the EGR can be tested with a handheld vacuum pump. Simply idle the engine and slowly apply vacuum to the valve. If the engine starts running rough, the valve is opening.
2/3/2013 1:17:26 AM • 1990 Chevrolet... • Answered on Feb 03, 2013 • 109 views
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I can't unlock or open my back doors, and I am unable to reach the screws to remove the panels

This is a lock smith or dealer issue unless you can get a slim jim type tool to reach through the window slot and catch the latch.
1/23/2013 11:42:01 PM • 1990 Chevrolet... • Answered on Jan 23, 2013 • 104 views
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My overdrive keeps dropping out for a split second and then back in. What is the fix?

Don't know the Suburan but suggest you check the wiring connection to the overdrive solinoid as it will be on the outside of the overdrive casing & open to all sorts of wet & muck.Also check the oil level.Jim
1/24/2013 8:48:46 PM • 1990 Chevrolet... • Answered on Jan 24, 2013 • 53 views
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Distributer and gap for 1990 Chevy Suburban

Gap is .045
Firing order is 1-8-4-3-6-5-7-2
1-3-5-7 is on the driver's side
2-4-6-8 is on the passengers side
8/1/2012 10:07:41 PM • 1990 Chevrolet... • Answered on Aug 01, 2012 • 441 views
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Where is fuse for cigarette lighter in my 94

Woohoo Just Found The Answer. Its in the fuse box located under the headlamp switch labeled "T/G REL" and it's a 25 amp fuse!
6/23/2012 7:36:50 AM • 1990 Chevrolet... • Answered on Jun 23, 2012 • 2,656 views
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