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Grand cherokee exhaust manifold leak

Trying to figure out why my check engine light is still on had previous work done and still it comes on, i know theres exhaust/fumes leaking because i can see it on the driver side under the hood. would welding a small leak be sufficient or should i replace the whole thing?

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  • Cars & Trucks Master
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A crack in the exhaust manifold will definitely cause the Check Engine light to come on as the O2 sensor is detecting exhaust gasses that have too much oxygen. The computer adjusts the fuel mixture and you end up wasting fuel and burning a lot of it in your catalytic converter (which will eventually clog and fail).

Welding is usually not an option - but if someone will do it and guarantee the work - go for it. Otherwise, this can be a fairly expensive job. Your regular mechanic might be able to do this work - but you may have been luck at an exhaust specialty shop like Midas or Meineke.

Posted on Jul 10, 2013

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Posted on Jan 02, 2017

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SOURCE: drivers side exhaust manifold leak.

You will be very lucky to extract the studs whilst in the vehicle. Drop the front pipe. Sounds harder, but, in reality, much easier.

Posted on Sep 09, 2008

emissionwiz
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replace the turns signals flasher unit.

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SOURCE: 1988 Ford F150 exhaust manifold leak

autozone.com repair section

Posted on Apr 03, 2009

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SOURCE: LOSS OF POWER EXHAUST LEAK WHERE MANIFOLD PIE CONNECTS TO EXHAUST

if the exhaust is just cracked i wouldnt worrie about the engine because you still have a lot of backpressure and it should not burn a valve. but replacing the header is a good idea if the header itself is cracked. and to tell you the truth your mechanic should be responsible for the cost of the repair since he broke it in the first place. In the shop i own if one of my mechanics breaks something it comes out of my pocket to replace. its all part of the job sometimes things just happen and you have to take the responsibility for it

Posted on Jun 09, 2009

  • 4369 Answers

SOURCE: ar leaks water under the carpet on the passenger

some cars have cabin air filters for the cliamte control system. It would not cause a leak. Look for a grommet loose or a seam leaking. Lift up the carpet and follow the stain to its source.

Posted on Jun 26, 2009

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