The Jeep we have smokes black every time it starts. And if you step on it a bit it does it also, & also none of the windows roll down nor the power locks work. IDK what to do please help.

Asked by Dec 07, 2014 at 02:02 PM about the 2004 Jeep Grand Cherokee Limited

Question type: General

4 Answers

10,795

The piston rings are probably worn or worn valve seals allowing seepage of oil past them. When the engine sits, oil collects in the cylinders and burns with the fuel when started. This explains the smoke at start up and acceleration. On the electrical side, check the fuses. It could simply be a blown fuse or fuses that is disabling the windows and door locks.

I'll check on that thanks for the reply. I'll post if I find the problem with you're help. Thanks

5,085

Black smoke is usually a sign of too rich of a mixture of fuel because of injector or ignition problems. Blue smoke is a sign of oil burning.

1 out of 1 people think this is helpful.
63,065

Ytlas is correct. Black smoke is too much fuel. HTH. -Jim

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