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Virtual Wrench
Virtual Wrench, Master Mechanic
Category: GMC
Satisfied Customers: 14618
Experience:  Over 35 years experience on GMC vehicles.
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My 98 gmc is not getting fire to the spark plugs I have

Customer Question

My 98 gmc is not getting fire to the spark plugs I have checked the coil module and crank sensor and they are all good
Submitted: 1 year ago.
Category: GMC
Expert:  Virtual Wrench replied 1 year ago.
Hello,
First, lets check to make sure there is battery voltage at the positive side of the coil.
Both when the key is in the cranking/start position, And just when the key is turned to the ON position.
Expert:  Virtual Wrench replied 1 year ago.
I also want you to verify some very important fuses located in the engine compartment fuse block. See diagram below.
Especially Ign A and B fuses
https://dl.dropboxusercontent.com/u/33691145/fuses.PNG
Let me know please.
Expert:  Virtual Wrench replied 1 year ago.
Hi,
Any luck?
Expert:  Virtual Wrench replied 1 year ago.
Hello,
I see that you read my last reply on 8/15/2015 at 7:47 AM
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