98 C1500 No Spark?
Asked by Nick Feb 27, 2015 at 09:56 PM about the 1998 Chevrolet C/K 1500 Cheyenne Extended Cab LB RWD
Question type: Maintenance & Repair
I have a 98 Chevy C1500 5.0L Vortec, On and off i was getting a P1315 Code, Most of
the time it took 2 attempts to start it once it was running it was fine. Now however I
have no spark. I have changed everything down the list to change with ACDelco parts
checked everything the last thing i did was have the computer changed and
reprogrammed and still no spark. I'm not sure what else to do or change out if anyone
could help me i would greatly appreciate it.
12 Answers
Do you have pass lock security in your truck? If so, you may have a bad pass lock ignition sensor.
Yes there is a Pass lock system but wouldn't the radio not work then? and if that is the case what do I change?
Check for spark with the key on and roll it over with a jumper wire. If it has spark and or starts, you'll know its a bad ignition switch in the "start position"
Spin the engine using the starter by bridging the relay for it
Thank you I will try that and let you know what happens.
I tried that and still nothing, I Have it at an auto electric repair shop, I'll post what i find out.
Pretty sure if your pass lock sensor fails, it basically disables your ignition. But please post back with results.
What ever he find out should i go with an ACDelco one or is a duralast one from autozone okay?
Yes 98 came standard with passlock 2 I believe and the main sensor is in lock cylinder. After changing cylinder be sure to do the 30 minute reprogram process. This will get ecm to recognize new key and sensor.
Check your coil and rectifier this will kill your spark.
