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99 Sonoma problem PLEASE HELP!!!
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camaro_87
New User
| Posts: 1
| Joined: 09/08
Posted: 09/09/08
04:55 PM
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hey everyone i have a 99 gmc sonoma with the 4.3 v6 vortec engine and my problem is that when im driving there is a "whistle" sound coming from the engine whenever i have my foot on the gas as soon as i let off it stops and it's annoying as &^%* when driving. i was told this was caused by my throttle body spacer but i also was told this could also be a vacuum leak. has anyone came across this problem before????? thanks in advance!!!!
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dumann007
New User
| Posts: 12
| Joined: 03/09
Posted: 03/25/09
09:08 PM
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well i would start with the cheapest and most simple, the vacume lines. put some soapy water in a spray bottle and spray the lines while the truck is running looking for bubbles to form from the crack. if that dosent help but im sorry i cant help ya any more
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