Question about 2002 Ford Mustang
I have a 2002 mustang convertible vin# 1FAFP44462Pxxxxxx, made in America. I'm living in Doha, Qatar. When I start the vehicle in the mornings or when the car is cold, it starts giving a sound, 'pat pat pat pat . . .' from the passenger side. I got it checked by an American cars mechanic who says that it’s a leak from the place where the end of manifold gets connected to the mid pipe and the gasket in there is the cause of the problem. Since he himself only handles electrical and minor mechanical problems, he doesn’t want to handle this thing but says that all that needs to be done by an exhaust expert is to open this joint and either put a new gasket or a high temperature silicon sealant.
I would appreciate if someone can tell whether this sounds to be the issue and whether any other mechanic can also open the joint and put silicon/ gasket. Most of the exhaust people here do not want to get involved in any complicated issue involving opening of other parts etc.
I can believe that diagnosis. When the pipes are cold, they shrink up just a bit, which will open any gaps further and result in the pulsation you hear. As the engine warms up, the pipes warm up and expand some, which will seal the gap and make the noise go away.
I would just put a new gasket in the joint of the pipes - it's a simple steel ring that costs less than $10. Undo the bolts on either side of the flange, pop the old gasket out, put the new one in, and bolt it back together. The only potential difficulty is if the bolts are heat-seized or corroded - you may need a torch or at least air tools to get them undone. On the other hand, soaking the bolts in penetrating oil or PB Blaster (or WD40 if the others are not available), may be enough to allow you to loosen them by hand.
It's an easy fix and any shop should be able to handle it without breaking a sweat.
Posted on Aug 28, 2008
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Posted on Jan 02, 2017
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