It sounds like your security system it failing. I had the same thing happen to me. i took it to a shop and they wanted like $300 to fix it so i did some research and found a module that u can install yourself .check it out they have awesome customer service and if it dose not work they will refund you all your money no question asked.. i hope this helps ya
http://vatspasslockpasskeysecurityhelp.com/ Do It Yourself GM Security bypass
SOURCE: car wont start
these cars go through coil packs regularly as the packs overheat due to their position on the end of the engine. I have 3 lanos and have replaced all coil packs at around 90,000 k's.
Hope this helps.
SOURCE: 4WD Hi does not work on 96 Chevy K1500 Suburban
we had this same problem, under the car there is a modular,near the transfer case, it just unlugs and plug a new one in.20 min.. it is approx. $80.00 item,$ 350.00 to have it done. we were in yellowstone when we had this problem. hope this helps
SOURCE: 1983 Chevrolet Suburban Heater fan not working
check relay and blower resistor...likely the relay is bad.
SOURCE: 1992 Suburban 1500 with 5.7. Cranks but no spark.
Did you try to get any DTC codes from the ECM. If not here is the procedure to retrieving the DTC codes. http://www.troublecodes.net/GM/ Check the fuses, make sure there all good. hope you find a DTC code which would help us find out what is wrong with the suburban quicker. Keep me posted and good luck, be glad to help you.
SOURCE: I need to know the firing order for a 1991
1988-95 5.7L and 7.4L Engines
Firing Order: 1-8-4-3-6-5-7-2
Distributor Rotation: Clockwise
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