Thread: Dies at Idle
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Old 10-04-2022, 12:10 AM   #11
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Join Date: Jan 2018
Location: Anacortes. WA
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Quote:
Originally Posted by Dead Parrot View Post
One possible vacuum leak is the power brake booster if you have power brakes. I had a booster on my C10 that leaked enough to cause idle issues but still worked well enough the problem wasn't obvious. Another often missed place is the small bit of hose on the modulator on automatic transmissions.

If you have an old style vacuum gauge, they often included a fuel pressure gauge as well.
I checked the power brake booster hose assembly but totally missed the transmission modulator. Good tip. My vacuum gauge doubles as a pressure gauge, I will see if I can make that work. Thanks!
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