1996 suburban turns over 3..4 times before it fires
Asked by Guru6N8M May 13, 2017 at 02:03 AM about the 1996 Chevrolet Suburban C1500 RWD
Question type: Maintenance & Repair
Please help.I have a 96 suburban have done plugs .leads
new fuel pump and filter. But it still winds over 3 to 4 times
sometimes more before it fires. All on occasion will back
fire through throttle body..what next.
3 Answers
Yes, as tennisshoes says, check the fuel pressure. It should be 56 to 63 lbs. Also once fuel pressure is built up on a fuel pressure gauge, turn the key to the off position. Fuel pressure should not drop more than 5 lbs in 3 minutes. If it does, that is a sign of the spider injection assembly leaking, and would need replacing.
Update.... right I have just brought a fuel pressure tester.will do this test tomorrow..the other thing it did today was when it fired a puff of black smoke from exhaust cleared quickly. Funny thing is it starts great straight after being driven. Wait ten minutes then hard to start again.