Questions tagged [vacuum-leak]

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2000 Toyota Echo with manual transmission has air intake box rattle

On startup and when I run the air when the engine shakes a little we hear a rattling sound. If I hold onto the air (where the air filter is located) I don't get the rattling sound. I removed and ...
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42 views

Could a vacuum leak cause a drop in manifold absolute pressure?

I've been doing some reading and speaking to a mechanic trying to diagnose a hesitation and rough idling issue. I think I've ruled out a vacuum leak by spraying flammable gas around the seals and not ...
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Possible leaky vacuum hoses?

I have a 2011 Nissan Murano with an intermittent MAF sensor OBD code indicating poor performance. After trying to clean the MAF sensor and eventually replacing the MAF sensor, I am still continuing ...
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58 views

Car starts for 47 sec and then slowly stalls and dies every time

I own a Nissan 300zx Z31 1985, a car which has been having the same recurring problem almost a dozen times now. I am usually able to fix this issue, however the fix is never successful permanently. ...
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2k views

Use compressed air to find vacuum leak?

I need to hunt for a possible vacuum leak in my 1999 Toyota 4runner. I've seen all the usual recommendations for this (propane, cigar, smoke machine, carb cleaner, soapy water.) Of those, soapy water ...