Question about 2005 Jeep Liberty

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I'm looking for a sensor that controls my rpm. my jeep reaches 2 on rpm and boggs down after two. i disconnected my battery to reset, and i'm able to pass 2 easy

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  • Roland Dec 19, 2012

    i changed out the iac butit stills boggs after 2 rpm,

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  • Master
  • 417 Answers

Idle air controller or IAC

Posted on Oct 29, 2012

5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 6982 Answers

SOURCE: Valve knocks when running reaches 1500 rpm

First, nothing you have done has anything to do with valve tappet noise. What is your oil pressure? Have you positively identified the noise as a lifter (tappet), OR COULD IT BE AN ENGINE BERARING OR WRISTPIN? Other than tearing it down and replacing lifters, rockers or pushrods or possibly even the cam, if oil pressure is good, change the oil and put a quart of Marvel oil in there. If that does not clear it up in a few days, you will have to go inside the engine. You likely have over 160k on that engine...consider using a replacement. Get an older tech to listen to it...it takes years to be able to differentiate between different component noises with any accuracy.
Personally, without hearing it myself, I'm betting it's a rod knock.

Posted on Feb 20, 2009

tecnovative
  • 360 Answers

SOURCE: Hello, My 2002 Jeep Liberty failed

If you haven't already done so I recommend that you take your Jeep to an auto parts store and ask them to use a scan tool to check for diagnostic trouble codes, most stores will do this for free. If there are codes returned this information can point you in the right direction.

Do you know if the "smog tech" tried removing the fuel cap and repeating the test? This may sound silly but vehicles with a Fuel Tank Pressure Sensor sometimes show a fuel pressure fault that can be resolved by removing the cap to relieve pressure. The Fuel Tank Pressure (FTP) sensor is part of the evaporative emissions system. The engine control system monitors gasoline vapor pressures in the fuel tank to determine fuel tank sealing. The FTP sensor can be used in conjunction with an EVAP vent valve and an EVAP canister purge valve. It is possible that if the PCM detects a FTP fault that it may not activate the O2 Sensor heater.

I assume that during the smog test they check for vacuum leaks, but one could have been missed. A vacuum leak in the EVAP system could cause this kind of fault. The duty cycle EVAP canister purge solenoid (DCP) is in the engine compartment attached to a bracket between the battery and power distribution center (PDC). The EVAP system test port is near the solenoid.

Posted on Feb 03, 2011

saailer
  • 1868 Answers

SOURCE: I have a factory installed alarm on my 2003 jeep cherokee ,how do i disable alarm

Hello! The drivers side door lock/unlock switch is more than likely defective...Having said that, the alarm system on Jeeps are a constant problem...To disable the system requires removing the drivers door panel and cutting the Light Green/Orange wire at the switch...And installing a 465 Ohm resistor...Not something done without the necessary skills...
I would have the vehicle towed to a Jeep dealer and have them test the drivers door switch and disable the alarm....Guru...saailer

Posted on Feb 02, 2012

SOURCE: 94 Jeep Grand Cherokee 4x4 with the 4.0 Keeps blowing the fuse that controls the fuse box inside the jeep, its blowing a 40 amp fuse. I believe there is a short. but i don't where to look.

Get yourself a set of factory wiring diagrams,
otherwise your wasting your time

You have no idea what you working on, without
reference material

Helm.Com

Posted on Jun 21, 2012

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