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Old Jul 9, 2013 | 07:01 PM
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  #33001  
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ccooper1234
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From: South Mills, NC
Year: 1998
Model: Cherokee
Engine: Rebuilt 4.0L I6
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On this bumper
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Old Jul 9, 2013 | 07:18 PM
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Originally Posted by cruiser54
MAP sensor located on the firewall? If so, how's the tube going to it?
replaced it a few moths ago vac line is good. could this one went bad?how do i check it.
Old Jul 9, 2013 | 07:21 PM
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cruiser54
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Originally Posted by organized chaos
replaced it a few moths ago vac line is good. could this one went bad?how do i check it.
Go to www.lunghd for testing procedures. Check the connection on your MAP first.
Old Jul 9, 2013 | 08:22 PM
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From: Post Falls, Idaho
Year: 1990
Model: Cherokee
Engine: 4.0
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Originally Posted by Lowrange2

Swap from auto to manual?
Yes ill be making the switch from auto to manual.
Old Jul 9, 2013 | 09:18 PM
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Originally Posted by salad
Bad TPS, or possibly TV cable. Do this, https://www.cherokeeforum.com/f2/free-quick-fix-41821/

Then this:
Thank You!
Old Jul 9, 2013 | 09:21 PM
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ThatPurpleXJ
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From: Springfield Virginia
Year: 1998
Model: Cherokee
Engine: 4.0
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Best way to get the torque shaft for the tcase back on the body side? It popped off while I had the tranny cross member off.
Old Jul 9, 2013 | 09:40 PM
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ccooper1234
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Year: 1998
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Engine: Rebuilt 4.0L I6
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Think this blazer is tall enough?
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Old Jul 10, 2013 | 06:56 AM
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cruiser54
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Originally Posted by Pam Skinner
I posted the below quoted questions a few days ago, and haven't seen a reply so I'm reposting it to see if there is an answer to my problem. Thanks for any assistance provided.
Pam, you're in the Cherokee forum and you have a Grand Cherokee.

I moved the post for you.
Old Jul 10, 2013 | 07:16 AM
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From: Visalia, California
Year: 1996
Model: Cherokee
Engine: 2.5 L
Default Strange Situation with Air Conditioner
Hi Guys

I am really confused. When I turn on my air conditioning, it starts fine; but while traveling on the freeway accelerating the air almost completely stops. As soon as I take my foot off the gas, the air will start blowing again.

Anyone ever have this problem? I don't even know where to start looking for a problem like this.

Any suggestions will be greatly appreciated.

Thanks Roxanne
Old Jul 10, 2013 | 07:21 AM
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Lowrange2
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From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
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Originally Posted by rockswealth
Hi Guys

I am really confused. When I turn on my air conditioning, it starts fine; but while traveling on the freeway accelerating the air almost completely stops. As soon as I take my foot off the gas, the air will start blowing again.

Anyone ever have this problem? I don't even know where to start looking for a problem like this.

Any suggestions will be greatly appreciated.

Thanks Roxanne
You have a vacuum leak.


It's not going away. It's going to defrost. The actuator that moves the blend door is vacuum operated. There is usually a busted vacuum line under the battery tray going to the vacuum cannister.

Should be pretty easy to find.

What model Jeep do you have?
Old Jul 10, 2013 | 07:23 AM
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salad
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From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
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Originally Posted by rockswealth
Hi Guys

I am really confused. When I turn on my air conditioning, it starts fine; but while traveling on the freeway accelerating the air almost completely stops. As soon as I take my foot off the gas, the air will start blowing again.

Anyone ever have this problem? I don't even know where to start looking for a problem like this.

Any suggestions will be greatly appreciated.

Thanks Roxanne
This is typical of a vacuum leak. The HVAC direction door is operated by vaccuum from the engine, when you stomp the pedal the vacuum that your engine is pulling goes way down (has a lot to do with that giant hole you opened in the throttle body). The factory installed a vacuum reservoir to help with this. It is a black ball that lives inside your front bumper. You'll see it if you take the passenger side end cap off. It's common for these to crack or have a problem with the line that feeds them.
Old Jul 10, 2013 | 07:25 AM
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Lowrange2
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From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
Engine: 4.0
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Originally Posted by salad
This is typical of a vacuum leak. The HVAC direction door is operated by vaccuum from the engine, when you stomp the pedal the vacuum that your engine is pulling goes way down (has a lot to do with that giant hole you opened in the throttle body). The factory installed a vacuum reservoir to help with this. It is a black ball that lives inside your front bumper. You'll see it if you take the passenger side end cap off. It's common for these to crack or have a problem with the line that feeds them.
Or this too.
Old Jul 10, 2013 | 07:42 AM
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salad
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From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
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Oh lol you posted first. Foiled again by my phone
Old Jul 10, 2013 | 07:42 AM
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Lowrange2
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From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
Engine: 4.0
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Originally Posted by salad
Oh lol you posted first. Foiled again by my phone
Too fast.
Old Jul 10, 2013 | 09:21 AM
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pirate
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From: pemberton nj
Year: 1988
Model: Cherokee
Engine: 4.0
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I have an 88 with tilt wheel is it worth rebuilding the column or just replace whole thing



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