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probaly because there is something wrong. If you don't have one already, get a Haynes or Chitlens Repair manual. They break down how to fix just about anything on the specified car. This will tell you how to check the ECM, or car computer. You will watch as the system gives you a set of blinking lights that are coded. You then take the number of long and short blinks ie. 4 long and 3 short, and go to the codes in the repair manual. It will tell you what engine part is sending a problem to the ECM, seeing as there are hundreds of different components that can go bad. Hope that helps. I had the same thing happen and I added more water to water reserve and light went out. the water was about one an a half inches below fill line on tank.
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What do the Jeep 2005 grand Cherokee check engine light symbols look like?
The check engine light on a 2005 Jeep Grand Cherokee looks like this... Here is a link Check Engine Light It looks like a little yellow engine.
How do you check engine light on 98 grand Cherokee Laredo?
With a scan tool.
What is the 2001 Jeep Grand Cherokee yellow warning light?
That is the check engine light.
What does it mean when the check engine light flashes on a 2000 grand Cherokee diesel?
A flashing check engine light normally means you have a misfire.
Grand Cherokee overheated and now will not start?
Check engine codes, check for spark, check for compression, check fuel pressure, etc.
Reset Check engine light Grand Cherokee?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Reset check engine light 2004 Jeep Grand Cherokee?
Disconnect the negative battery cable for about two minutes and that should reset your check engine light.
What is check engine code P1491 for 2000 Jeep Grand Cherokee?
RADIATOR FAN CONTROL RELAY CIRCUIT
What does the engine light mean on a 2000 Jeep Grand Cherokee Laredo?
The check engine light stays on when the engine computer has detected a malfunction and set a trouble code.
1998 Grand Cherokee runs rough when gas is pressed?
Misfire? Due for a tune up? Check engine light on?
How do I reset the check engine light on my 2001 jeep grand Cherokee Laredo?
go to advance and let them shut it off
97 Jeep Grand Cherokee inline 6 engine knock?
May want to check flexplate, could be cracked.
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