Project 'Hole in the Pocket'
#768
Thread Starter
CF Veteran
Joined: Jul 2012
Posts: 3,683
Likes: 5
From: Hudson, FL
Year: 1999
Model: Cherokee
Engine: 4.0L Inline 6
#769
Senior Member
Joined: Oct 2012
Posts: 989
Likes: 2
From: Gainesville,FL
Year: 1996
Model: Cherokee
Engine: 4.0
#770
Thread Starter
CF Veteran
Joined: Jul 2012
Posts: 3,683
Likes: 5
From: Hudson, FL
Year: 1999
Model: Cherokee
Engine: 4.0L Inline 6
#771
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,167
Likes: 21
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
NICE!!!!
Still.... for $20 you can't get mad at that deal even if the MAP is no good. The MOPAR IAT would cost you more than that!
Still.... for $20 you can't get mad at that deal even if the MAP is no good. The MOPAR IAT would cost you more than that!
#772
Thread Starter
CF Veteran
Joined: Jul 2012
Posts: 3,683
Likes: 5
From: Hudson, FL
Year: 1999
Model: Cherokee
Engine: 4.0L Inline 6
So I cleaned the throttle body yesterday and I couldn't believe the carbon buildup in the butterfly valve area and in the IAC orifice. I just cleaned it about one and a half years ago. So I cleaned that up and so far, no more idling issues. I think maybe the IAC plunger was just getting inaccurate readings because it was dirty. So I probably didn't even need the MAP and IAT sensors I bought.
But only time will tell if this fixes the issue. I only drove about 5 miles after cleaning and haven't had ample testing time yet.
But only time will tell if this fixes the issue. I only drove about 5 miles after cleaning and haven't had ample testing time yet.
#773
Senior Member
Joined: Oct 2012
Posts: 989
Likes: 2
From: Gainesville,FL
Year: 1996
Model: Cherokee
Engine: 4.0
So I cleaned the throttle body yesterday and I couldn't believe the carbon buildup in the butterfly valve area and in the IAC orifice. I just cleaned it about one and a half years ago. So I cleaned that up and so far, no more idling issues. I think maybe the IAC plunger was just getting inaccurate readings because it was dirty. So I probably didn't even need the MAP and IAT sensors I bought. But only time will tell if this fixes the issue. I only drove about 5 miles after cleaning and haven't had ample testing time yet.
Glad to hear it
#776
Junior Member
Joined: Dec 2013
Posts: 69
Likes: 0
From: Malta NY
Year: 2001
Model: Cherokee
Engine: 4.0L I6 MPI Power Tech HO
I don't know about you guys but cleaning the IAC would have been the first place for me to look. its called the Idle Air Control valve for a reason.... if u have idling problems then that would be a given to check since it is the only sensor on the throttle body that controls the idle...
im sorry I hate to be a complete ******* with this statement but I feel that it just really needed to be pointed out...
im sorry I hate to be a complete ******* with this statement but I feel that it just really needed to be pointed out...
#777
Senior Member
Joined: Oct 2012
Posts: 989
Likes: 2
From: Gainesville,FL
Year: 1996
Model: Cherokee
Engine: 4.0
I don't know about you guys but cleaning the IAC would have been the first place for me to look. its called the Idle Air Control valve for a reason.... if u have idling problems then that would be a given to check since it is the only sensor on the throttle body that controls the idle... im sorry I hate to be a complete ******* with this statement but I feel that it just really needed to be pointed out...
#778
Thread Starter
CF Veteran
Joined: Jul 2012
Posts: 3,683
Likes: 5
From: Hudson, FL
Year: 1999
Model: Cherokee
Engine: 4.0L Inline 6
I don't know about you guys but cleaning the IAC would have been the first place for me to look. its called the Idle Air Control valve for a reason.... if u have idling problems then that would be a given to check since it is the only sensor on the throttle body that controls the idle...
im sorry I hate to be a complete ******* with this statement but I feel that it just really needed to be pointed out...
im sorry I hate to be a complete ******* with this statement but I feel that it just really needed to be pointed out...
And keep in mind, I JUST had my new brake lines put in, so I thought maybe a vacuum line could have been damaged in the process since depressing the brakes would cause a fluctuation in RPMs (it went higher, not lower) when this issue occurred.
I did not blindly make a choice to just buy components. But I did anyhow because the price was just too good to beat, and for Mopar parts (hell yeah). Basically, it had a lot of strange factors that the regular guy would not typically have to account for.
Last edited by thatXJguy; 03-11-2015 at 11:38 PM.
#779
Junior Member
Joined: Dec 2013
Posts: 69
Likes: 0
From: Malta NY
Year: 2001
Model: Cherokee
Engine: 4.0L I6 MPI Power Tech HO
Well the only issue being that it wasn't that long ago that I cleaned it. So I attempted to rule that out as an issue. It seems like just a year and a half is a short amount of time for a clean sensor to get dirty again and start malfunctioning. So perhaps the IAC sensor will need to be replaced soon anyhow.
And keep in mind, I JUST had my new brake lines put in, so I thought maybe a vacuum line could have been damaged in the process since depressing the brakes would cause a fluctuation in RPMs (it went higher, not lower) when this issue occurred.
I did not blindly make a choice to just buy components. But I did anyhow because the price was just too good to beat, and for Mopar parts (hell yeah). Basically, it had a lot of strange factors that the regular guy would not typically have to account for.
And keep in mind, I JUST had my new brake lines put in, so I thought maybe a vacuum line could have been damaged in the process since depressing the brakes would cause a fluctuation in RPMs (it went higher, not lower) when this issue occurred.
I did not blindly make a choice to just buy components. But I did anyhow because the price was just too good to beat, and for Mopar parts (hell yeah). Basically, it had a lot of strange factors that the regular guy would not typically have to account for.
believe it or not, with the gas that we get today a year and a half is actually pretty long. i clean my throttle body on an almost 6 month basis to make mine running good. although that could be caused by the **** gas we get up here in NY, especially in the winter.
but its understandable of what you are saying as your reasoning.
#780
believe it or not, with the gas that we get today a year and a half is actually pretty long. i clean my throttle body on an almost 6 month basis to make mine running good. although that could be caused by the **** gas we get up here in NY, especially in the winter.
but its understandable of what you are saying as your reasoning.