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Jerry Newton
Jerry Newton, GMC Technician
Category: GM
Satisfied Customers: 4412
Experience:  ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
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GM safari van 4.3: 97 gmc safari van ran good did nothing but

Customer Question

97 gmc safari van ran good did nothing but change coil and ignition module now no start put old stuff back still no start replaced crankshaft sensor no help do i need wiring schematics computer testing
Submitted: 1 year ago.
Category: GM
Expert:  Jerry Newton replied 1 year ago.
Why did you replace those things, if the truck ran well?
Customer: replied 1 year ago.
because had engine cover off and to avoid future breakdown
Expert:  Jerry Newton replied 1 year ago.
OK, let's take a step backwards. Do you have spark when it's cranking? Use a spark tester or equivalent, see if you have spark at the coil when cranking.
Customer: replied 1 year ago.
no spark from coil
Expert:  Jerry Newton replied 1 year ago.
Do you have power at the pink wire going to the coil?
Customer: replied 1 year ago.
is there some voltage measurements i can take or other troubleshooting i have a multimeter and have lots of electrical experience
Expert:  Jerry Newton replied 1 year ago.
I would be looking for battery voltage at the pink wire connected to the coil.
Customer: replied 1 year ago.
van turns over fine but no spark
Customer: replied 1 year ago.
checked fuses and cleaned fuse box located in engine compartment also cleaned connections to fuse box and ground
Customer: replied 1 year ago.
already paid 38 dollars for a rapid response is phone more money
Expert:  Jerry Newton replied 1 year ago.
Yes, that is correct.
Customer: replied 1 year ago.
no can you send me an attachment of schematics and troubleshooting steps
Expert:  Jerry Newton replied 1 year ago.
I can. :) The attached document has all of the procedure and a schematic, but the hyperlinks to other articles will not work for you. This should take you down the correct path, though. Any questions, let me know.
Customer: replied 1 year ago.
ok have to go now will check this evening thanks
Expert:  Jerry Newton replied 1 year ago.
Sure, let me know how it works out.
Customer: replied 1 year ago.
I never received the email that you sent to me. The email was incorrect. Please resend the info to***@******.***. Also, was not able to open the link that you sent me. Please resend this also. I have already paid for the information. Need this information ASAP. John Kadish
Expert:  Jerry Newton replied 1 year ago.
I'm sorry, John. You have email.