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What tools do i need to install a egr sensor on a 97 mountaineer

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Looks like all you would need is a 10 MM socket and ratchet. Or just a 10 MM wrench. Here is a picture of it. Please rate this. Hope this helps, James Booth what tools do i need - 2011-05-07_194622_97_mountaineer.gif

Posted on May 18, 2011

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You will need to do a smoke test to find evap leak. Alot of times it is just the gas cap. Cheap enough to try and it probably needs one anyway. The cat is most likely a oxygen sensor. What are the codes.if you dont drive any long distances they can take a long time to reset. If this is the case google the drive cycle for your vehicle. You have to do the drive cycle EXACTLY as it says or it will not work.

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Did you do a complete OBD code-clear of the computer?
Codes don't reset just because you fix the problem. Many of the codes need to be cleared using a OBD machine - buy it at Auto repair places for about $60. You also have to disconnect the battery for a minute to reset some of the codes.
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1997 mountaineer 5 liter motor ,how to replace egr valve, find location


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My Mercury Mountaineer is jerking while in motion. Autozone gave me 3 different readings and I don't know which one to try to get fixed first. The codes were P0401- which deals with the EGR, which I...


the p1400 is also an egr code more than likely the dpfe sensor differencial pressure fuel .....
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If you have the check engine light on, rent a scanner, read out the code(s), and pursue to repairs. Possible problems are: idle air valve, vacuum leak (hoses and loose bolts) on intake manifold, EGR valve defective or not properly controlled, PCV valve defective, sticky injectors, bad plugs/wiring, O2 sensor, ect.. Use the scan codes to replace parts--don't just start swapping parts till it works.

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Check the passages under the airhorn. When carbon builds up the diagnostic blames the EGR for not opening and throws a code. Actually there is no flow to the EGR because the port is clogged and the diagnostic measures the flow after the EGR.

They really needed to have a sensor before and after the EGR. Also remember to disconnect the battery for 10 minutes to remove old info.

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1 Answer

How to remove egr valve on 1997 lincoln towncar


The EGR valve can be replaced by using a pipe wrench, or a standard wrench to remove the fitting over the pipe going into the EGR valve... it's not too hard to replace, I've done it on mine myself... I have a 97 town car as well... the only problem is that my EGR valve was fine, but the computer told me it was bad... But I found out that the EGR sensor was bad, not the valve... now to replace the EGR sensor you need to remove the engine... FORD in their infinite wisdom decided to put the EGR sensor on the rear of the engine, half way down next to the firewall...

My mechanic said that as long as the car is running fine, I souldnt worry about the EGR sensor, its job is to tell me when the EGR valve is bad...

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In 97 mercury mountaineer, how to turn off "check engine" light


Go to the local parts store, have them check the codes (they will do this for free usually). It will tell you what sensor needs to be checked/replaced. Once the part is replaced, it will clear on its own. They can also reset the code, but it will come back if the trouble persists.

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