View Single Post
Old 08-20-2007, 02:54 PM   #2
ChevLoRay
Old Skool Club
 
ChevLoRay's Avatar
 
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
Re: Help 97 truck popping through the exhaust

Gotta be a sensor that triggers something related to the ignition process. Back in the day, popping through the exhaust was usually because the condensor of a points ignition system was going bad. With the ignition system we have, I don't think that there is anything in the ignition process that would relate to that being a problem.

Has the Check Engine light come on? I am assuming it hasn't, since you didn't mention it. How long has it been since the plugs were changed? Could there be a build-up on the electrodes that is staying hot enough to ignite a stray mist of fuel? Without a code having been set, it's gonna be hit or miss and parts changing. I'd seriously consider the plugs, unless they are new.

Nothing says it couldn't be a fuel injection issue, but (again) I think a code would have to be set to know for sure.

Good luck.
__________________
Member Nr. 2770

'96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed.

'69 C-10 SWB; 350/TH400 - in limbo

The older I get, the better I was.
ChevLoRay is offline   Reply With Quote