It sounds like the catalytic converter is clogging up also if your car is running to rich the converter will over heat.
SOURCE: car dies when driving,check engine light comes on.
There is a good chance it could be your fuel pump , however if the check engine light is coming on and the dealer cant tell you what is wrong , try a different dealer or another shop. Second opinions never hurt.
SOURCE: engine overheating audi 4.2 a8 1999
I would have the cooling fan checked, and have the thermostat changed. An overheated thermostat (overheating caused by something else) will cause problems in the future.
SOURCE: 1997 Jeep Grand Cherokee. Stalls out,engine quits running
since its a 1997 your jeep has EFI, electronic fuel injection. The most probable reason for your troubles would be the injectors or a problem with the computer controling them, not allowing enough gas to be pushed into the cylinder causing stalling or lack of power, also too much gas iin the cylinder can lead to back firing and stalling. This would also explain the reason it takes so long to start back up some times, all the excess gas in the cylinder is flooding the motor and u have to wait till the gas disipates till the engine will turn over.
SOURCE: I have a 1997 mercury cougar xr7, 4.6L, I noticed
Yes it can be related. If you bought the car from a car lot you may have a window sticker showing a 30 to 90 day warranty. The Catalytic converter can be expensive although it is similar to installing a muffler or header extensions.
The hesitation can be due to the engine controls trying to adjust for the difference in exhaust readings from one side to the other. Or it has excessive backpressure caused by the plugged catalytic converter.
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