My truck won't get spark after it runs for 20 minutes and you turn it off

Asked by Jim Jul 06, 2013 at 09:35 PM about the 1991 GMC Sierra

Question type: Maintenance & Repair

I replaced the cap rotor coil ignition switch and distributor and it still doesnt have
spark after I shut it off. It will start after sitting for 15 minutes. It's a 6 cylinder gmc
sierra 1500 year 91

2 Answers

migration_judge_roy answered 12 years ago

get a brand new battery and clean the connection to the chassis ground to 1/0 battery cable....and to the block (near the starter)....with amperage and CLEAN solid power will behave normally~

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