96 tahoe died suddenly

Asked by Apr 27, 2017 at 05:35 PM about the 1996 Chevrolet Tahoe

Question type: Maintenance & Repair

my 96 Tahoe died so I replaced fuel pump voltage was low, did not help by passed relay and could hear it working ,still did not start. smelled gas at tailpipe. checked for spark and saw constant spark at no. 1 plug but no spark elsewhere. I know what the spark should be(crank,crank,crank,spark, not three times per second at no 1) what would cause this? the cap and rotor are not that old, and when you look at the cap the coil path and the no 1 path are not close to each other.

3 Answers

I forgot to mention the rotor is turning so it is not the timing chain or dist gear, I d rather not start throwing parts at it, because I have a new motor ready(flat tops, ported vortecs,ramjet cam) and this one ran fine with 320k . also where does 2 quarts of water a day go. Ive heard they have a intake gasket problem. its getting worse over 8 years Ive had truck.

the spark issue was the rotor screws fell out so rotor only spins when cap was off put new rotor still doesn't run spark looks fine but cranks weird so next I plan to replace timing chain or entire engine

the timing chain marks line up I noticed the crank position sensor had ground a groove from the reluctor ring contacting it. autozone sells a 5 dollar spacer and the sensor is 74 bucks. would this cause it to die suddenly while driving fine?

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