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What problems can a bad egr valve cause?

Updated: 12/10/2022
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16y ago

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my mechanic told me it is hard on your brakes. I suppose from having to constantly brake to slow the car down. It's like having cruise control on all the time.

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Q: What problems can a bad egr valve cause?
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What are the symptoms of a bad EGR valve in a 2000 Saturn SL?

A bad EGR valve in a 2000 Saturn can have several symptoms. The EGR valve can cause misfires, the valve can cause vacuum leak style problems. There could also be an engine knock.


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Where is the egr valve on the 91 Pontiac Grand Am?

Would this cause the car not to start If the EGR VALVE is bad


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Can a catalytic converter cause the EGR valve to go bad?

No, the catalytic converter is downstream from the EGR valve so it has no effect on it.


Will bad egr valve cause vehicle to stall in hot weather?

Even a good EGR valve may cause an engine to stall in hot weather.


What problems can an bad EGR valve cause?

Stumbles, dies off, low power, poor fuel economy, check engine light


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It can.


Will a bad egr valve cause a motor to burn oil?

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Could a bad egr valve in a Chevy cause the engine not to restart after it has been running?

A bad EGR valve should not cause the engine to not start. There is most likely another problem that is causing the engine to not start.


Can a bad egr valve cause your check engine light to flash?

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Can the egr valve affect the idle?

Yes. Carbon deposits in the EGR valve can cause it to stick open a bit and cause a rough idle. If it is bad enough, the engine will stall out when you slow to a stop.