The Ford Barn

hueyhoolihan · 06-02-2026, 04:23 AM

i'm experiencing a lot of popping noises from the engine when at idle. even from a cold start. at first i thought it was coming from misfires, but recently i'm suspecting they are not misfires.

my thoughts are that i've got a leak in my exhaust system and the popping is simply unburnt fuel in the exhaust gases meeting up with oxygen being brought into the exhaust system by the leak.

any thoughts on popping and it's sources?

Ggmac · 06-02-2026, 06:35 AM

Delete

corvette8n · 06-02-2026, 10:26 AM

I checked ignition and compression on my ‘41 and came to the conclusion I have a sticky valve or two. The more I drive it the better it seems to get.

petehoovie · 06-02-2026, 10:53 AM

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Quote:

Originally Posted by corvette8n

i checked ignition and compression on my ‘41 and came to the conclusion i have a sticky valve or two. The more i drive it the better it seems to get.

bingo!

06-02-2026, 04:23 AM	#1
hueyhoolihan Senior Member Join Date: Dec 2024 Location: central coast california Posts: 593	engine popping noise, mostly at idle i'm experiencing a lot of popping noises from the engine when at idle. even from a cold start. at first i thought it was coming from misfires, but recently i'm suspecting they are not misfires. my thoughts are that i've got a leak in my exhaust system and the popping is simply unburnt fuel in the exhaust gases meeting up with oxygen being brought into the exhaust system by the leak. any thoughts on popping and it's sources? Last edited by hueyhoolihan; 06-02-2026 at 09:45 AM.

06-02-2026, 06:35 AM	#2
Ggmac Senior Member Join Date: Jul 2016 Location: Lake worth Florida Posts: 1,466	Re: engine popping noise, mostly at idle Delete

06-02-2026, 10:26 AM	#3
corvette8n Senior Member Join Date: Jul 2010 Location: 36 miles north of Albany NY Posts: 3,323	Re: engine popping noise, mostly at idle I checked ignition and compression on my ‘41 and came to the conclusion I have a sticky valve or two. The more I drive it the better it seems to get.