IT will sputter it wont run long even in idle.
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1990 GMC Suburban 1500 Question: i have 1988 suburban it idles fine but when you give it gas it dies.
Answer #1mastertech6371 January 19, 2012, 15:25Master
sounds like the fuel pump has failed. have it checked to verify.
Answer #2gmc4me January 19, 2012, 17:55Journeyman
Possibly a bad distributor cap and rotor. If it gets worse when it is damp out I would be almost 100% sure thats your problem. Your looking at about $20. You may have a bad fuel pump. Check fuel pressure. When you hit the gas the car demands more fuel so the fuel pressure may not be there to meet the demand.
Answer #3KENSTIRE from Ken's Tire Service, January 19, 2012, 20:52Enthusiast
start with your fuel filter and fuel pump relay before spending the money on a fuel pump.