Last post on Nov 27, 2013 at 8:36 AM
You are in the Jeep Cherokee and Jeep Grand Cherokee
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Jeep Cherokee, SUV
#2481 of 2589 2001 Jeep Cherokee Aniv Engine Idle Problems after Rebuil
Jun 01, 2009 (1:03 pm)
Hello...I am new to this group. I have a 2001 Jeep Cherokee 4.0 4X4. I just had the engine rebuilt by NAPA. The new engine is installed and connected. I started it up and it was idling rough. I noticed some vacuum leaks on the injectors so I replaced all of the O-Rings. That seemed to fix some of the problems. I checked the onboard computer and there are not error codes. The engine sounds great when you run in above 1000 RPM. It just when it idling is when it is rough. There are no air leaks. All of the sensors are connected. Before the engine died(before it was rebuilt) it ran and idles normally. Does anyone have an opinion?
#2482 of 2589 Re: 2001 Jeep Cherokee Aniv Engine Idle Problems after Rebuil [yeats66]
Jun 02, 2009 (6:37 am)
Still sounds like a vacuum leak of some sort.
#2483 of 2589 Re: 2001 Jeep Cherokee Aniv Engine Idle Problems after Rebuil [lildavidjax]
Jun 02, 2009 (5:26 pm)
I have triple checked numorous times...i thought there may be a leak on the manifold but there was not. Any other suggestions?
#2484 of 2589 Re: 2001 Jeep Cherokee Aniv Engine Idle Problems after Rebuil [yeats66]
Jun 02, 2009 (5:31 pm)
I suggest a quadruple check on the vacuum lines. Maybe one of the check valves on the valve cover is reversed?
Usually a rough idle will eventually be chased down to a vacuum line either partially connected, disconnected, or connected to the wrong place.
#2485 of 2589 AC on 1988 Jeep Cherokee 4.0 ltr
Jul 02, 2009 (4:29 pm)
I have a 1988 Cherokee that needs to have the AC charged, but I am calling around to find prices for this service and cant tell what kind of AC fluid I need. Does anyone know if it is R12 or 134A in this model?
Jul 06, 2009 (4:56 am)
A decal on your radiator support or the firewall should tell you what kind of refrigerant it takes. IF it's R12 it will need to be retrofitted for R134A. No way around it. It's law.
#2487 of 2589 Check Engine Light
Jul 10, 2009 (11:01 am)
Took my Cherokee to Autozone and they ran diagnotics. Code says I have either a failed transmission range sensor,,or ,, Open or short circuit condition...My question: Where is this range sensor located and how do I trace open circuit with this thing. Part only available at dealers I understand. Any reply would be appreciated. 2000 Jeep Cherokee 4.0l auto 4 wheel drive.
#2488 of 2589 Re: Im back !! 98 jeep cherokee [riverbugz]
Jul 11, 2009 (12:44 am)
I know it's an old post but have you found out the problem. I am having the exact same issue. Already replaced TPS, and the 2 O2 sensors. Problem is still there.
#2489 of 2589 neutral safety switch
Jul 11, 2009 (10:04 am)
It appears that my neutral saftey switch for transmission on my 2000 cherokee 4.0l has gone bad. I had posted earlier saying it was my transmission range sensor and that is not the case. Is it all right to drive with this condition around town until I can get it fixed????
#2490 of 2589 Re: Cruise Control Dash Indicator - 97 Jeep Cherokee XJ [oh97xj]
Aug 06, 2009 (5:45 am)
I have a 2001 Cherokee, and have the same issue. Have you been able to resolve this, and if so, could you elaborate?