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  View original topic: backfire and bad idle
samvan Thu Aug 21, 2008 1:36 pm

Hi everyone,
a couple weeks ago my vanagon (78 engine) stopped Idling on it's own, i had to keep pressure on the accelerator, I tried to turn up the throttle but the spring around the screw was compressed all the way. Soooo, i took it off and turned up the throttle any way. Now.... it will idle fine, but it back fires occasionally, some times a little pop pop, some times a ka-bang. Plus without the spring the throttle screw slow unscrews with the shaking of my engine and I have to adjust every so often. WTF should I do? I need a new air filter as well, would that help alleviate this problem?
A lot of advanced thanks for any advice.

heerojyuy Thu Aug 21, 2008 1:39 pm

Find and fix your vacuum leak.

enjoispammy8 Thu Aug 21, 2008 3:01 pm

arent you in the wrong forum section?

samvan Thu Aug 21, 2008 3:04 pm

My engine is from a 78 bay window bus, so i don't thinks so.

enjoispammy8 Thu Aug 21, 2008 3:24 pm

o well you had said vangon. sorry! :roll:

WaWesty Thu Aug 21, 2008 3:55 pm

my 78 transporter does the same thing everyonce in a while check the big vacum lines on the top its always that one of them popped off



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