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1998 Chevrolet Suburban Repair Question


Topics covered: Battery, Engine, Sensor.
Mileage: 160 miles.

Asked on May 27, 2012

It cranks but won't start

I have NO spark!! Fuel pres. is good. I have tested/replaced all ign. related parts up to the spark control module in the ECM. (I.E.- Crank sensor, rotor, cap, coil, ign. module, pick up coil/cam sensor)My check engine, battery and check guages lights are on. I'm at the end of my rope!!! I've twirled wrenches for 10 years + and cannot get it to start!!! The scanner says it's unable to communicate with the vehicle. (lighter still works)This truck has an impeccable service record. Started the previous night - no problem - the next morning - NOTHING. Occasionally, the security light will come on, but doesn't blink at all. Please help before I put a rocket launcher to it!!!! I'm unable to work due to being rear ended TWICE in 7 months!!!! 2 surgeries later - rotator cuff and 4 screws, I just don't have the money to go to a mechanic. If you guys can help me - I'll mail you a money order for $25. if it'll help.
Thanks, Henri
Avatar Asked by bikeflyer

Answer

Replied on May 27, 2012

Which engine do you have?

Tiny Answered by KHLow2008 (expert)
39,900 answers provided
Replied on May 27, 2012

SORRY!!!!!!!!!!!!!! 5.7 gasoline

Tiny Response from bikeflyer
1 question asked
Replied on May 27, 2012

If scaner cannot communicate with the PCM, you have a missing power supply somwwhere or the immo is triggered ( if equipped). Check Pin # 16 of OBD-II for battery voltage.

Tiny Answered by KHLow2008 (expert)
39,900 answers provided