Popping noise under the dash
#1
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Popping noise under the dash
For the last probably two months I have had an annoying popping under the dash. It is usually right after first starting the truck and then is random while driving and after turning the truck off. I checked the wiper delay module thingy and still heard the noise. It stops if i lightly push the break pedal and starts again when i release the brake. I'm leaning towards it being a bad booster, its a reman less than a year old. I know people have had bad luck with the reman units but I've never had a booster go bad and make this type of noise.
Any ideas?
Any ideas?
#3
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Watts your volt meter doing when these pops occur? Take a look up there at night and look for flashes.
#7
Registered User
Have you tried changing the air selector on the heater while its doing the sound? That moves with vacuum and could be related to the brake booster.
Any auto resetting circuit breakers in the fuse block?
Any auto resetting circuit breakers in the fuse block?
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