98 blazer won't start

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08-29-2011, 07:54 AM

kriscole

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Thread Starter

Join Date: Aug 2011

Posts: 4

98 blazer won't start

Ok so we have replaced the timing belt and got it right this time so we have spark, replaced CKP, plugs and wires, pick up coal, rotor and distributor cap. It turns over and acts like it wants to start but it won't. We had the ingintion coal tested and its good. It seems we are getting fuel. The code says PO336 which is the CKP but it's new and we have the reluctor ring back on correctly. Now I am wondering the old CKP is nothing but metal that slides up in the timing chain cover but the new one seems to have plastic around the metal except at the end will that make a difference? The truck has been sitting for 4 months now so i am not sure what else to try and one got ideas?

Last edited by kriscole; 08-29-2011 at 07:57 AM.

08-29-2011, 09:58 AM

pettyfog

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Join Date: May 2011

Location: SW Central OH

Posts: 2,257

Quote:

Originally Posted by kriscole

Ok so we have replaced the timing belt and got it right this time so we have spark,

replaced CKP, plugs and wires, pick up coal, rotor and distributor cap. It turns over and acts like it wants to start but it won't. We had the ingintion coal tested and its good. It seems we are getting fuel. The code says PO336 which is the CKP but it's new and we have the reluctor ring back on correctly. Now I am wondering the old CKP is nothing but metal that slides up in the timing chain cover but the new one seems to have plastic around the metal except at the end will that make a difference? The truck has been sitting for 4 months now so i am not sure what else to try and one got ideas?

When you say you have spark, I assume it means regular, strong and blue.

So you removed and reinstalled distributor, right?
- Distributor off a tooth?
Very common. Line up crank at timing mark and rotor near #1, mark rotor position. Use long screwdriver to reposition oil pump shaft a few deg. Drop dist in

Quote:

DTC P0336 can be caused by secondary components leaking high voltage into the ignition module. Check for the following conditions:

Incorrect harness routing near secondary ignition components.
Ignition coil arcing to wiring harness or ignition control module (check ignition coils for cracks, carbon tracking, or other signs of damage).
Secondary ignition wire(s) arcing to wiring harness.