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-   -   P0300 missfire when cold (https://blazerforum.com/forum/engine-transmission-35/p0300-missfire-when-cold-83226/)

matthewp 12-09-2013 07:57 AM

P0300 missfire when cold
 
Last monday my truck started to missfire again after about a year of no problems. It went all week with no issues, but started missfiring again this monday. The computer shows a code P0300 for a random missfire as a history code. I know the aftermarket cap and rotors have a habit of failing, but could it be something else?

matthewp 12-09-2013 07:13 PM

Update: Checked the cap and rotor and they do have some corrosion build up the terminals, but in reinstalling the distributor cap I accidently stripped the threads on the distributor itself. I am going to attempt to repair it, but I might end having to replace the distributor itself. Is Cardone a good brand or do I have to get an AC Delco distributor.

Captain Hook 12-09-2013 07:25 PM

The corrosion build up might not be corrosion;) When the cap is replaced, silicone dielectric grease must be applied to the terminals inside and out. When the engine is running, the grease crystalizes. It is there to reduce/eliminate corrosion.

If the housing is stripped or broken, get a Skip White 6671-BK all aluminum distributor: White Performance Detail Description

Stay away from plastic distributors, and use AC Delco cap & rotor only.

matthewp 12-10-2013 05:26 AM

Thank you for the advice, hopefully everything works outs. I'm getting the parts today.

matthewp 12-14-2013 08:46 PM

Got the parts last Thursday night and my truck got me forth to work without any issues. The distributor I got was an Accel and it came with new everything; the distributor you guys recommended is out stock and I had to get my truck back out on the road ASAP (I had to carpool with my boss at work for a while; while my truck was down).


So far no issues, but does anyone have any experience with Accel distributors?

Captain Hook 12-14-2013 08:54 PM

As long as it's all aluminum, not plastic, it should be fine. Don't expect the cap that came with it to last long though.

EDIT: Out of stock, that's odd. Their Ebay store has plenty:http://www.ebay.com/itm/GM-CHEVY-VOR...0cbf6b&vxp=mtr

matthewp 12-15-2013 07:44 AM

Glad to hear, going to buy an AC Delco cap and rotor and put them in my truck incase the worse happens. Thank you for your help.


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