popping sound at idle - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GREASEMONKEY72 · 12-21-2007, 05:11 PM

my truck has a popping sound at idle and somebody told me once it was because of the 5 and 7 plugs wires touching, well ive made sure the wires arent touching and zip tied them up so they wont but ive still got that popping sound

i havent pulled the plugs yet but i plan to try and do that tomorrow to check and clean them and see what happens

68gmsee · 12-21-2007, 05:22 PM

Mine started doing that last week. I removed the plugs and found one of them that was bad. I went ahead and replaced them all.

To be honest, I've never had success cleaning them. I've always just replaced them. For about $10 or so, you might be better off having a set with you just in case.

GREASEMONKEY72 · 12-21-2007, 05:37 PM

well i know the last time i cleaned them i didnt clean #7 cuz i felt i couldnt get it out without breaking it so i just left it but im going to do them all and not skip any and see what happens

wibilly · 12-22-2007, 01:23 AM

fresh engine , tired engine? pop through the carb or exaust? you could have burntvalves or not enough lash. have you done a compression test? also check your ignition timing

GREASEMONKEY72 · 12-22-2007, 04:12 PM

Quote:

Originally Posted by wibilly

fresh engine , tired engine? pop through the carb or exaust? you could have burntvalves or not enough lash. have you done a compression test? also check your ignition timing

im sure its tired but it runs good and its through the exhaust, i didnt get a chance to work on it today but im determined to wrench on it tomorrow

12-21-2007, 05:11 PM	#1
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	popping sound at idle my truck has a popping sound at idle and somebody told me once it was because of the 5 and 7 plugs wires touching, well ive made sure the wires arent touching and zip tied them up so they wont but ive still got that popping sound i havent pulled the plugs yet but i plan to try and do that tomorrow to check and clean them and see what happens __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

12-21-2007, 05:22 PM	#2
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: popping sound at idle Mine started doing that last week. I removed the plugs and found one of them that was bad. I went ahead and replaced them all. To be honest, I've never had success cleaning them. I've always just replaced them. For about $10 or so, you might be better off having a set with you just in case.

12-21-2007, 05:37 PM	#3
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: popping sound at idle well i know the last time i cleaned them i didnt clean #7 cuz i felt i couldnt get it out without breaking it so i just left it but im going to do them all and not skip any and see what happens __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

12-22-2007, 01:23 AM	#4
wibilly Senior Member Join Date: Nov 2005 Location: northwestern wi Posts: 2,111	Re: popping sound at idle fresh engine , tired engine? pop through the carb or exaust? you could have burntvalves or not enough lash. have you done a compression test? also check your ignition timing __________________ common sense isn't so common anymore



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