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Jeep Wrangler TJ 99-04 Heater/AC Vacuum Switch Mopar

Jeep Wrangler TJ 99-04 Heater/AC Vacuum Switch Mopar

Jeep Wrangler TJ 99-04 Heater/AC Vacuum Switch Mopar
$ 37.64

Score By Feature

Based on 172 ratings
Easy to install
9.90
Value for money
8.98

OveReview Final Score

How Our Score Is Calculated

Product Description

This is a genuine OEM factory part. Fits like a glove! Manufacturer's fitment!

Questions & Answers

Are you having a problem with your switch? Wear and tear on the blower motor probably accounts for this. Does Jeep Forum have any articles on how relays can be used to fix melting issues?

It is true that if the motor is on the verge of failing, it will draw more electricity than the switch can supply. It will alleviate the problem for some time after replacing the blower motor and vacuum switch, but the problem will return once the new blower motor begins to die. On Jeep Forum there is a great write up on how to install relays that will alleviate the amount of power the blower motor and switches consume. Jeep's Research and Development Division overestimated the longevity of their electrical equipment without relays, and that led to a mishap.

I am having trouble with my blower I have replaced the resistor and the blower motor, but nothing has changed. Is this the next thing I need to ?

In retrospect, this probably should have been the first item to be replaced. It is a bad design Jeep used where a switch is fed with full current for running the motor. Over time, the switch will burn up (actually melt). The Jeep forum shows you how to add relays to the top medium and high setting of this switch in several articles. This will prevent you from having to replace it in the future. It isn't hard to figure out once you figure it out, as I have added relays to several.

My 1999 Jeep Cherokee is fitted with this brake system will this work?

Unfortunately, the part will not fit on your Cherokee. I know that hurts to hear, but unfortunately, it cannot be installed. There is a difference in the electrical plug in the back. It's only for wranglers. In an effort to satisfy my curiosity, I went on eBay and found the entire Chevrolet Cherokee control panel As far as I can tell, Amazon does not sell a vacuum switch alone.

Do you know if this will work on a 1999 Jeep ?

I've tried it on my 1999 TJ and it worked. This should be a good thing I wish you the best of

Selected User Reviews For Jeep Wrangler TJ 99-04 Heater/AC Vacuum Switch Mopar

A great replacement part that works in my 2001 Jeep TJ as a direct replacement for the vacuum switch
5/5

You will likely find this problem is being caused by the vacuum supply coming into the cab if your air conditioner will only blow out of the defrost. The battery tray has several tees and a vacuum reservoir with what appears to be a broken vacuum line. Please be aware that this does not fix the blower speeds In those cases, it is usually a fan resistor or the blower switch that is faulty.

Alma Donaldson
Alma Donaldson
| Jan 05, 2021
A 2000 Jeep TJ for Fit Changed from 3 to The pins of a plastic connector
5/5

A new one was installed for my Jeep WRANGLER TJ 2000 because the melted plastic connector stuck to three Cooper pin connectors
Once you remove the fan selector switch (FAR RIGHT), air pressure can be heard decompressing. Heatshrinks and other stuff, 6 wires, a little thicker than the once in your Jeep, I also had to replace the other blower motor resistor with the part with lots of holes, however I think that is the resistor that is hot the heater.

Olive PARKINSON
Olive PARKINSON
| Apr 20, 2021
This modification is required for 2006 TJ's
4/5

This seemed to fit the 2006 TJ based on the questions. In order to make it fit properly and work in my 06 TJ, I had to modify it. A wrong diameter was used for the vacume posts. After installing new vacuum posts, diaphragm, diaphragm plate, and spring, I was able to update my old switch to work seamlessly. With a razor blade, I also needed to trim two posts on the housing. There was a switch on my old AC that couldn't turn it off. The system now works perfectly and I did not have to spend $160 to get it to work. A control panel costing $2,000 is required for the entire AC system.

Stephen Herring
Stephen Herring
| Sep 16, 2020
The part is of good quality and is easily replaceable
5/5

You must search YouTube for the replacement videos in order to install them. We could complete the repair in 30 minutes, including removing the dash. If you are unable to find your dash knobs on Amazon, don't rule out the possibility that they are worn out and will need to be replaced. It appears that might have been my problem all along, as the plastic knob had become brittle and was broken inside, allowing it to rotate freely and not actually turn.

Bridget Pierce
Bridget Pierce
| Sep 21, 2020
These are mopar parts
5/5

I got them for a 2000 Jeep TJ. There's an intermittent problem with the blower. Prior to installing it, I had replaced pretty much everything. I was able to solve my problem within a few minutes. I called the auto stores and dealership for the part, but they only sell the entire console for $129, instead of the part.

Yasmin Fry
Yasmin Fry
| Dec 07, 2020
I liked how simple it was to install and how well it performed
5/5

It only took a few minutes to install, and so far it looks like it's working well.

Magnus Cunningham
Magnus Cunningham
| Feb 11, 2021
I messed up
5/5

I had no problems with this part. Since I made a mistake, it had to be done twice. The control handle had a crack on the inside that could not be seen, so the new part appeared to be inoperative. I took the whole thing apart and was going to buy another part when a friend suggested I try using the channel locked moving stem instead. Works great now that I have a new control handle.

Elisa Griffin
Elisa Griffin
| Sep 20, 2020
I really like how it works
5/5

I have never seen a plastic heater/AC vacuum switch as good as this one made by Mopar. As a replacement for my Jeep's second best plastic heater/AC vacuum switch made by Mopar, I found it so impressive I used it as a replacement.

Cassidy HOPE
Cassidy HOPE
| Jul 27, 2020

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