Question about 2004 Jeep Grand Cherokee

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Where are vacuum lines on 2004 jeep cherokee - 2004 Jeep Grand Cherokee

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On the driversside part of the engine under the silver manifold on the side of the engine block there are three. 1 of them controls your cruize control and fan selector switch. they do pop off as I found out on my 2004 Grand Cherokee but thats for the 4.0 L6 hope it helps.

Posted on Mar 16, 2011


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 88 Jeep Cherokee 4 Wheel Drive Problem

It sounds like the vacuum acuater is cracked or broken internaly. Recomend replacing the acuater and replacing all vacuum hoses at the same time. There is also a small relay switch under the hood under the radiator tank that may also require replacing.

Posted on Feb 09, 2009

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SOURCE: CRD 2004 doesn't start. Jeep do not how to fixe it

The dealership has at their disposal far more and better testing equipment than most normal repair shops...their technicians are supposed to be well trained and competent...Yet, in one week you note that they did about a half days actual work and in doing what they did, have not repaired your problem? Who is working on the vehicle...the janitor or a lube tech? And, I'll bet that they are going to charge you for not fixing it!!! You would likely do better getting yourself a decent manual and a digital volt/ohm meter, and going through the system item by item till you find it yourself. Or see if you can find a decent independent shop that specializes in Jeeps in your area...You may do better there. There isn't enough info for me to offer anything meaningful, but often the problem is common to a bad crank sensor, ignition switch or auto shutdown relay...but without real testing, I could be way off with this. Also...don't forget there is an engine underneath the electronics that needs to be checked as well.

Posted on Jul 28, 2009

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SOURCE: I need a vacuum line diagram for a 1998 jeep grand

Your public library will have a manual covering your mechanical repair. Moreover, they have the automotive shops online software called AllData. It is the best auto technician database available today. You can print out specific troubleshooting procedures, diagrams, step-by-step istructions, and soforth. The typical person cannot afford to pay for this service, just automotive dealerships, etc... that is why the public library made it available to everyone and for free to view and print out material. This should Fixya! Good Luck!

Posted on Aug 28, 2009

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SOURCE: 2004 grand cherokee jeep power windows and

Had to same problem with power grid on door to windows and locks. Turned out to be 3 broken wires just on the inside of door connection to firewall of engine. Took couple of hours to locate and fix by mechanic for $55.00 after I had already spent $89 at GMC dealer to be told needed new wiring harness for $1700 before labor! Will never go back to Dealer!

Posted on Sep 12, 2009

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SOURCE: 96 jeep grand cherokee hatter has defrost only .

Check the sticker under the hood on the rad support or on the firewall,it should lead you to the problem.

Posted on Dec 15, 2009

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I have a 2004 grand Cherokee has a vibration from the transmission its really noticeable in drive. when you put it in park it's not as bad of a vibration

Check your vacuum lines. Another area to pay attention to is...there is a stud on the back of the valve cover that can rub on your fuel injector wires. But check your vacuum lines. Hope this helps. Bob

Sep 13, 2014 | 2004 Jeep Grand Cherokee

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Engine light on code po442

Problem with one of the oxagen sensors,

Nov 04, 2012 | 2004 Jeep Grand Cherokee

1 Answer

Why is my jeep stuck on defrost?

you have to check vacuum canister and vacuum lines. when a vacum line is cracked or canister has a crack you cant control air directing doors in hvac system, becasue engine creates vacuum and this canister is connected to vacuum lines and you can only control hvac system when vacuum exist on electric panel equipped Ac systems, you do not need vacuum to control blending doors. there are electric motors.

Oct 27, 2011 | 1993 Jeep Cherokee Country

1 Answer

Air is only coming out the defrost vents. when I turn the switch for other vents nothing happen 2004 jeep Grand Charokee

the default mode is defrost in the air distribution.common problem is lack of vacuum due to
old/worn hoses.if you can, trace vacuum lines coming through firewall to intake manifold

good luck

Jun 17, 2011 | 2004 Jeep Grand Cherokee

1 Answer

My 2004 Grand Cherokee only blows air through the defrost vents and none of the other vents. What might be the problem?

One thing it might be is the vacuum operated door motor that is under the dash in the lower middle of the cabin. Or one of the vac lines could be pulled off.

Mar 17, 2011 | 2004 Jeep Grand Cherokee

1 Answer

2004 Grand Cherokee defroster not blowing hot air everything else works

On this year vehicle the flapper should be vacuum controlled. You may want to look at the vacuum lines going to and from the vacuum canister in the engine compartment. If it will change from floor to dash but not defrost then you may have a failed vacuum line or diaphragm in the dash from the selector.

Feb 09, 2011 | 2004 Jeep Grand Cherokee

2 Answers

I have a 2004 Jeep Grand Cherokee. The operation of the manual Climate control no longer allows me to select which vent I want air, center, floor, and defrost. I only get air out of the defrost vents.

This system uses vacuum from the engine intake manifold to steer the vacuum actuator of the mode door. Fail safe position is defrost. Most of the time problem is caused by a loose vacuum line at the manifold or a shaved trough line somewhere under the hood. The line runs on the LH side off the engine (as seen from drivers position) starting on the intake manifold.

May 20, 2010 | 2004 Jeep Grand Cherokee

1 Answer

2004 jeep grand cherokee codep0244 small evap leak

use carb cleaner and waft all vacuum lines and areas near evap can and when engine rpm changes you are close ...:) good luck

Oct 31, 2008 | 2004 Jeep Wrangler

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