smoke test for evap leak

[stv]

I have a p2177 and p2179 codes keep coming up in diagnostic and therefore assume a vacuum leak.

I have had a visual inspection of hoses in search for cracks or breaks but so far have been unable to find anything.

I would like to do a smoke test to see if this will show up the source of the leak and therefore would like to know the procedure for testing if anyone knows?

[JFP in PA]

I have a p2177 and p2179 codes keep coming up in diagnostic and therefore assume a vacuum leak.

I have had a visual inspection of hoses in search for cracks or breaks but so far have been unable to find anything.

I would like to do a smoke test to see if this will show up the source of the leak and therefore would like to know the procedure for testing if anyone knows?

 

Running a smoke test for vacuum leaks requires a smoke generating machine and attachements:

 

 

These devices produce a very small stream of smoke that passes through small wand attachments that can be run along vacuum lines and connections while looking for the smoke stream to suddenly disappear, indicating a vacuum leak.  Unfortunately, these systems are not inexpensive, but can sometimes be rented.

[stv]

I have a p2177 and p2179 codes keep coming up in diagnostic and therefore assume a vacuum leak.

I have had a visual inspection of hoses in search for cracks or breaks but so far have been unable to find anything.

I would like to do a smoke test to see if this will show up the source of the leak and therefore would like to know the procedure for testing if anyone knows?

 

Running a smoke test for vacuum leaks requires a smoke generating machine and attachements:

 

 

These devices produce a very small stream of smoke that passes through small wand attachments that can be run along vacuum lines and connections while looking for the smoke stream to suddenly disappear, indicating a vacuum leak.  Unfortunately, these systems are not inexpensive, but can sometimes be rented.

Thanks, does the cayenne 4.5 turbo have a test port anywhere fir connecting the smoke machine? Or is it just a case of pulling hoses one at a time and testing?

[JFP in PA]

 

 

I have a p2177 and p2179 codes keep coming up in diagnostic and therefore assume a vacuum leak.

I have had a visual inspection of hoses in search for cracks or breaks but so far have been unable to find anything.

I would like to do a smoke test to see if this will show up the source of the leak and therefore would like to know the procedure for testing if anyone knows?

 

Running a smoke test for vacuum leaks requires a smoke generating machine and attachements:

 

 

These devices produce a very small stream of smoke that passes through small wand attachments that can be run along vacuum lines and connections while looking for the smoke stream to suddenly disappear, indicating a vacuum leak.  Unfortunately, these systems are not inexpensive, but can sometimes be rented.

Thanks, does the cayenne 4.5 turbo have a test port anywhere fir connecting the smoke machine? Or is it just a case of pulling hoses one at a time and testing?

 

 

Neither, running, the smoke machine generates a thin plume of smoke that passes thru one of the attachment's that is slowly moved along the vacuum lines and connections until you see the smoke get sucked in.

 

 

And before you ask, yes, smoke tests are time intensive.

[stv]

I have a p2177 and p2179 codes keep coming up in diagnostic and therefore assume a vacuum leak.

I have had a visual inspection of hoses in search for cracks or breaks but so far have been unable to find anything.

I would like to do a smoke test to see if this will show up the source of the leak and therefore would like to know the procedure for testing if anyone knows?

 

Running a smoke test for vacuum leaks requires a smoke generating machine and attachements:

 

 

These devices produce a very small stream of smoke that passes through small wand attachments that can be run along vacuum lines and connections while looking for the smoke stream to suddenly disappear, indicating a vacuum leak.  Unfortunately, these systems are not inexpensive, but can sometimes be rented.

Thanks, does the cayenne 4.5 turbo have a test port anywhere fir connecting the smoke machine? Or is it just a case of pulling hoses one at a time and testing?

 

Neither, running, the smoke machine generates a thin plume of smoke that passes thru one of the attachment's that is slowly moved along the vacuum lines and connections until you see the smoke get sucked in.

 

 

And before you ask, yes, smoke tests are time intensive.

Thats great info thanks.

I was under the impression it had to be connected to a hose whilst the engine was turned off and looking to see where the smoke escaped from.

Thanks renntech.