1994 TBI whistling
February 3rd, 2019 | 12:56 PM
#1
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1994 TBI whistling
Hi.... researched enough to know my son's 1994 4.3 Chevy 1500 W/T has a whistling problem from the base of the TBI system indicating a gasket failure and that "theory" is reinforced by a fast idle at start up.... simply, the TBI gasket needs to be replaced... has anybody done this? Is there a step by step listing somewhere for this? I saw a 5.7 gasket replaced from an A1 You Tube video and suspect the process is much the same... suggestions appreciated.... PS This same problem occurred well over a year ago and I sprayed carb cleaner around the base of the carb and the problem "went away" so we didn't replace the gasket... I will try that again tomorrow but want to be prepared if that doesn't solve the problem..... Thanks....
February 3rd, 2019 | 4:57 PM
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February 3rd, 2019 | 6:50 PM
#3
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Thank you.... it doesn't get much better than that.... Doesn't look too tough.... I did decide to go out and check out this and a few other problems on the truck.... and ran into a difficult hood release problem too... but finally got it to pop and then lubricated that... Then I started the motor and the high pitched "whistle" was there just like a year ago, so I sprayed carb cleaner around the base and also, like last year, the whistle disappeared... My son still has the $5 gasket I bought last year but didn't get around to installing.. hoping the quick carb cleaner fix works again until spring.... Tomorrow, I go after the exhaust leak... thanks again....