Question about 2007 Jeep Grand Cherokee Overland

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2007 Jeep G C diesel stalling

Since this was new the engine stalls under accelerarion periodically. I slow down for a yield sign or traffic and upon pressing the throttle the engine will drop to 300 rpm. I let off the throttle and it will pick up. The dealer has checked it numerous times and can't find the problem. The ambient and engine temp make no difference, up or down hill no diff, fuel level no diff, the filter has been replaced.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 4 Answers

SOURCE: Stalling when engine temp reaches 160 degrees

Here are my theories

Idle Air Control valve (IAC) - allows a small amount of air to pass though throttle body at idle since the butterfly in the throttle body is closed at this time - if this doesn't open the vehicle will stall

Air Intake Temp Sensor - Helps correct air fuel ratio by measuring the temp of the air coming through the intake

Oxygen Sensor - Largest determinate of air/fuel ratio after the vehicle almost reaches operating temp which is approx 160 degrees

Coolant temp sensor - Largest determinate of the air/fuel ratio from cold up to the point when the oxygen sensor takes over

EGR Valve - 5.2 Liters are known for these failing, they redirect a small amount of exhaust gases back into the intake manifold for re-burning (emissions thing). Sometimes they get stuck closed and allow for too much exhaust gas back into the manifold. But usually this would cause very poor performance as well as shuddering and stalling

Use what you know about your condition and what these common fail items are and see if any of them sound like the problem

Posted on Aug 25, 2008

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  • 6982 Answers

SOURCE: jeep wrangler stalls out

check idle air control, tps & map sensor. As usual with electronics, test test test before buying anything/

Posted on Feb 18, 2009

teezay731
  • 1 Answer

SOURCE: rough idle stalls at low rpm's

check your transmission fluid,the motor will stall when fluid is low

Posted on Mar 24, 2009

  • 35 Answers

SOURCE: steps to replace fuel pump on 1999 jeep cherokee laredo 4wheel dr

how are the spark plugs?

would start with those.

the fuel filter is usually located under the hood by the intake manifold and attached to the firewall of the car. the pump is located right by the fuel tank and if you cant see it then its inside the fuel tank. (you will have to lower the fuel tank down to get to the pump.)

Posted on Aug 14, 2009

herbalgarden
  • 344 Answers

SOURCE: 95 2.5 jeep wrangler stalls consistantly and will

I had the same issue with my 4.0, I went through all the same BS you did and in the end it was a faulty fuel pump. Pricy i know but im sure thats your problem

Posted on Nov 15, 2009

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Number one may be a stuck open EGR valve
Number two would be a failing Idle Air Control valve (IAC).
Try this: Open the hood & locate the EGR valve, close to the firewall, behind the intake. Find & take with you a small hammer. The next time that it happens, open the hood & tap on the EGR valve. If it is sticking "open" the tapping may dislodge the carbon particles that are keeping it open.When the EGR valve is open, exhaust is getting into the intake at idle, and this will def stall out the car.
There is no repair to the IAC valve, it would need to be replaced if it is bad.
One of these two scenarios will cure your problem, I see it every day.

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