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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have 1998 Chevy Tahoe with 5.7 350 Crank but no start.

Customer Question

I have 1998 Chevy Tahoe with 5.7 350 Crank but no start. These are the parts i have replace so far from wear and tear.
1) Starter,2)fuel pump and relay,3)Ignition Passlock sensor,4)Ignition cylinder with matching coded keys.5) Ignition wiring at column to inside firewall,
6) Crank position sensor,7)Ignition coil.
I have no spark at #1 or the Ignition coil.
In the process of all this I found that the Ignition coil was spliced over to the M.A.F wiring and to the distributor. Could use any and all help possible.
Detailed wiring diagram, etc. Please help.
JA: How many miles are on the car? Has the car been starting normally?
Customer: 196,000.
JA: What is the model of your '98 Chevy?
Customer: I believe lt
JA: What troubleshooting have you tried?
Customer: Replacing several electrical parts, checking electrical current from battery to ecm,to cylinder #1 No, spark at #1 or distributor or coil
JA: Any recent repairs?
Customer: 1) Starter,2)fuel pump and relay,3)Ignition Passlock sensor,4)Ignition cylinder with matching coded keys.5) Ignition wiring at column to inside firewall,
6) Crank position sensor,7)Ignition coil.
JA: Is there anything else the Chevy Mechanic should be aware of about your Chevy?
Customer: Not that i can think of
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 12 months ago.
Category: Chevy
Expert:  Gary replied 12 months ago.

Hi there,

Have you got a scan tool, and checked for codes set?

Can you check data for engine speed while cranking?

Gary

Expert:  Gary replied 11 months ago.

Hi again,

Do you still need help?

Gary