20 Most Recent 1990 Chevrolet C1500 Questions & Answers

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I have a 1990 chevy cheyenne. The engine will turn

Hey One, Sounds more like the fuel pump...just my 2 cents worth... Chevrolet 1500 1988 1998 Repair Manuals Chevy Service Manuals Original Shop Books Factory Repair Manuals
7/12/2017 10:36:07 PM • 1990 Chevrolet... • Answered on Jul 12, 2017
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I have a 1990 Chevy Silverado with the 5.0 V8. Sometimes it is hard to start and once it is started it does not like to sit and idle. After running a while it will idle and smooth out. When I drive

indicates injectors ( dirty /blocked tips, low fuel pressure--up to 65 psi-injector wiring and harness , ECM problem run the fault codes with a scanner that has GM protocol installed
7/9/2017 4:06:32 AM • 1990 Chevrolet... • Answered on Jul 09, 2017
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Running extremly rich

I recommend you check the fuel pressure regulator diaphragm for proper installation and tears. Did you get a new one with your rebuild kit?
7/1/2017 10:31:30 PM • 1990 Chevrolet... • Answered on Jul 01, 2017
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90 chevy 350 tbi crank no start, truck was started

You first need to check the fuel pressure, an easy way to access this is to buy a can of spray starting fluid, spray it into the TBI throttle valve and if the truck starts and dies you have no fuel pressure. Replace the fuel; pump, and make sure you get the right pump, it is a low pressure system.
5/19/2017 10:50:42 PM • 1990 Chevrolet... • Answered on May 19, 2017
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What cause rear brake to stick?

Possible out of adjustment, bad proportioning valve, bad springs on brake shoes, shoes out of alignment, leaking wheel cylinder. Good luck
4/11/2017 3:37:29 AM • 1990 Chevrolet... • Answered on Apr 11, 2017
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5.7l tbi. Where can I get underhood wiring diagram?

Hi Laura, One of the easiest ways to get wiring diagrams is to go to Autozone website and sign up as a Do It Yourselfer, Autozone owns Alldata. They are one of the largest companies that provide Wiring diagrams,etc, for pretty much everything on the road and it's free. Hope this helps, Good Luck, Randy. I’m happy to assist further over the phone at https://www.6ya.com/expert/randall_d932ef6e01588b0f
5/2/2016 4:04:27 PM • 1990 Chevrolet... • Answered on May 02, 2016
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Where is the oil pressure switch located on a 1990 Chevy truck

oil pressure switch normally located close to the oil filter or around the oil pan and lower engine block where the oil is stored
4/7/2016 5:35:44 AM • 1990 Chevrolet... • Answered on Apr 07, 2016
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Which number in VIN identifies which motor came in truck from factory?

eighth digit
12/19/2015 2:46:19 AM • 1990 Chevrolet... • Answered on Dec 19, 2015
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R&R distributor all new parts[intrenal]new coil. no spark at coil

6cyl or 8cyl? Have you verified the rotor is turning inside the dist.?
7/12/2015 3:09:13 PM • 1990 Chevrolet... • Answered on Jul 12, 2015
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5.7 TBI new gm distributor[all new internal parts]new gm coil voltageat coil no spark. rotor turning all mechanical parts working

Check the ground at the coil. If ground is good. check for ground at the distributor module. If both are good, you have bought a bad part. Both can be checked.
7/12/2015 2:48:58 PM • 1990 Chevrolet... • Answered on Jul 12, 2015
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Replaced distributor and coil proper voltage at coil.no spark at coil

Possible ignition module
7/12/2015 1:40:02 PM • 1990 Chevrolet... • Answered on Jul 12, 2015
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Can a transmission in a 1990 Chevrolet Impala fit into a 1991 Chevrolet 1500 pick up truck

Try checking with the below link and input all the information on your vehicle. It should give you an idea what transmission will interchange. Car Part com Used Auto Parts Market
6/26/2015 8:37:18 AM • 1990 Chevrolet... • Answered on Jun 26, 2015
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I have a 1988 chevy

I would take it to a good mechanic and have him check to see if it needs a tune up or if it has jumpt time. Sometimes the timming chain will stretch if the engene has a lot of miles on it.
6/3/2015 7:08:54 AM • 1990 Chevrolet... • Answered on Jun 03, 2015
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Tailgate latches but is loose and rattles.how to adjust

Normally there are bolts on the latch and in the pins on the tailgate itself. You might have to adjust all 4 of them in order to make the rattling stop
5/12/2015 1:59:10 PM • 1990 Chevrolet... • Answered on May 12, 2015
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90 chevy k1500 350 tbi,

YOU NEED TO TEST FOR SPARK, IF NO-SPARK SUSPECT IGNITION MODULE, THIS IS A COMMON PROBLEM WITH THIS TRUCK.
4/28/2015 1:01:54 AM • 1990 Chevrolet... • Answered on Apr 28, 2015
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