catch-22
17th November 2007, 06:50 AM
OK, I can now describe what it is I am hearing when my '03 D2 is on boost. It sounds like a mass gushing of air and mayby, 'maybe' an ever so slight rattle.
This may or may not be related but I have noticed that on hotter days it tends to want to kick back a gear when at the foot of slight inclines. However, this only happens sometimes. For example, on one of the days it did this i was heading up the coast and it kicked back a gear or two on the up side of the Mooney Mooney bridge. On the way home, temps were a little warmer and it powered up without the kickback no problemo...and overall, it felt more powerful. So really hard to get a recurring pattern...
I had an issue like this in my track car when I had a crack in one of the silicon hoses going to the intercooler.
So it could be crack in one of the pipes?
I also thought it could be a buckled exhaust manifold which I have read is not uncommon. I did take off the turtle shell and hand felt all of the nuts holding the manifold...none of then moved at all and they all had the same sound when I tapped them with my nail. Basic test I know, but it does/should work.
I am going to check the silicon hoses today. A visual inspection at first followed by a pressure test. I found my track cars cracks in the silicon hose with the pressure test. I have also heard that the hoses can delaminate from the inside....
Any other thoughts on what this gushing of air when on boost could be?
Cheers
Caine
This may or may not be related but I have noticed that on hotter days it tends to want to kick back a gear when at the foot of slight inclines. However, this only happens sometimes. For example, on one of the days it did this i was heading up the coast and it kicked back a gear or two on the up side of the Mooney Mooney bridge. On the way home, temps were a little warmer and it powered up without the kickback no problemo...and overall, it felt more powerful. So really hard to get a recurring pattern...
I had an issue like this in my track car when I had a crack in one of the silicon hoses going to the intercooler.
So it could be crack in one of the pipes?
I also thought it could be a buckled exhaust manifold which I have read is not uncommon. I did take off the turtle shell and hand felt all of the nuts holding the manifold...none of then moved at all and they all had the same sound when I tapped them with my nail. Basic test I know, but it does/should work.
I am going to check the silicon hoses today. A visual inspection at first followed by a pressure test. I found my track cars cracks in the silicon hose with the pressure test. I have also heard that the hoses can delaminate from the inside....
Any other thoughts on what this gushing of air when on boost could be?
Cheers
Caine