• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Hesitation accelerating, stealership says nothing's wrong?



If you don't find any answers with the carb cleaner test, you can try a DIY smoke test as well. Disconnect the air hose going from the TB to the airbox, and put a latex glove over the TB (DON'T START THE ENGINE AFTER THIS!!!). Disconnect the brake booster vacuum hose with the check valve attached, and connect a clean hose to the check valve. Light up a cigar, cigarette, "Other," whatever you want that smokes, and blow that smoke into the clean hose. After about 4-5 puffs of smoke, you should start seeing smoke come out of somewhere.

I had to use this method to track down my vacuum leak for 2 reasons: I painted my engine so I wanted it to stay pretty (carb cleaner eats paint), and carb cleaner would not have shown me the vacuum leak I had.

My valve cover was leaking causing a vacuum leak. PCV uses vacuum to work, so if there is a leak in the crank case (valve cover, oil cap, front\rear seals) it is a vacuum leak. The entire principle behind the carb cleaner test is that the engine sucks the carb cleaner in and it makes the engine rev a bit since there is more fuel (carb cleaner) being burned. If the leak is in the crank case, that won't happen.

Try the carb cleaner trick first, since it is easier, but if doesn't give you any results, you now know the next step, lol.
 
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