Hey Dan, I'll bet you have a leak at the exhaust manifold to head union. If I heard what you said correctly "cccccchhhhhh", that definitely sounds like high pressure exhaust noise. Try blocking the tailpipe momentarily with a tennis ball or some rags in you hand (operant word "momentarily") to see if you can make the noise louder and get a fix on where it is coming from. You may need it up in the air and you may need a helper..Have a "ball"...Jeff

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of posponing the inevitable.

[This message has been edited by jeffsr (edited 11-25-2000).]