Question about 2001 Jeep Grand Cherokee

1 Answer

No heat bought heater treater what does code 14 mean?

I got a heater treater and going to install it the codes displayed are 54 56 and 14 i know what 54 and 56 are what does code 14 mean? and will the heatertreater fif the problem and get me heat?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Jeep Master
  • 1,779 Answers

1st, what is 'heater treater?' Is this something you add to the cooling system? Is your engine temp gauge in the normal range, or is the jeep running at the cold end of the temp. gauge? Is the fan for the heat/and a/c working? There are several reasons you may not have heat.
1.make sure coolant level is ok, low level will cause a no heat condition.2. If engine is not warming up properly (running at the cold side of temp gauge), you may have a thermostat that's stuck open, not allowing the engine to reach operating temp-result, no heat.3. If you can hear the fan blowing for the heat-a/c, but not feel it blowing at the vents, your 'blender door' (opens and closes to allow heat-a/c to enter the cabin) may be stuck closed. I had a Jeep (4L engine, but older than yours) which had a valve in the heater hose line that once froze up (stuck closed) and resulted in a no heat situation. If the heater treater is something you add to the radiator, I wouldn't waste the $ to use it, as it probably won't help this problem. Your codes: I could find no code 54, #14 is 'B' camshaft position sensor -timing over advanced, or system performance bank 1.

Posted on Nov 17, 2009


1 Suggested Answer

  • 2 Answers

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

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Meaning and solution of 00635, 00525

code 00635 refers to heated oxygen sensor (HO2S) 1 bank 1 heater circuit malfunction===causes wiring --- HO2S
code 00525 refers to HO2S ===causes---wiring--HO2S---heating inoperative--fuel level low

Jan 03, 2014 | 1997 Volkswagen Golf

1 Answer

2005 ford explorer 6 cyl. has a heater/ac damper problem. how do i remove and install a new damper assembly?

It is called a blend door you need to replace both the actuator and the door. Follow the instructions at this site to use a product called the Heater Treater, it is avail on Ebay. If you wish to go full OEM you must remove the dash assembly completely and that takes about 12 hours. This is a factory defect and Ford may provide assistance in the repair if you call the factory customer service number and set up a meeting with the field rep fro Ford. I have seen this happen but it is a case by case deal.

Oct 02, 2012 | Ford Explorer Cars & Trucks

1 Answer

Clicking noise behind radio and the heat dont work

There is a blend door motor that moves the door in the HVAC box. When the motor strips it's gears or extends it's designed travel limit. it makes a clicking noise. Most likely, the door itself is broken. "Heater Treater" makes a replacement door that can be installed without removing the dash in most cases. HTH , Les

Feb 06, 2010 | 1997 Lincoln Town Car

1 Answer

I cannot get hot air from heaters

You likely have the dreaded "Blend Door" problem. In short, a piece of plastic that the engineers used to move the blend doors up and down was not up to snuff. As a result, the turning mechanism breaks, the blend doors fall down, and all you get is cold air. There's two fixes: One, you get a replacement Blend Door system from Chrysler and pay a dealer around $1000 to install it. (You have to discharge the A/C and remove the entire dash!) Or you can fix it using the "Heater Treater" fix. It's around $100 and you go in through the glove box. Just google "Heater Treater" for more info.

Jan 09, 2010 | 2000 Jeep Grand Cherokee

2 Answers

I have no heat in my 2000 expedition. I have

check thermostat and both heater hoses

Jan 02, 2010 | 2000 Ford Expedition

1 Answer

I have a 2001 Jeep Grand Cherokee. Originally blew only cold air no matter what the heat settings were at. Then blower stopped working. Discovered wires were corroded and replaced them as well installed...

either bad recirc doors or a possible bad heater core. Open the hood and when the car is warmed up to mid point on the temp gauge look on the passenger's side firewall under the hood. You will see 2 black rubber hoses running through the firewall. Feel each hose and if one of the 2 are cold then you have a bad heater core. Otherwise most likely the recirc door.

Nov 16, 2009 | 1994 Jeep Grand Cherokee

2 Answers

Sears did a computer eval on our car and gave us codes only

P0135--OXY SENSOR HEATER CIRCUIT(bank 1 sensor 1)
P0141--OXY SENSOR HEATER CIRCUIT(bank 1 sensor 2)

Here are the code definitions.hope it helps.

Nov 15, 2008 | 1997 Mercury Cougar XR7

3 Answers

Heating and cooling

You can't even reach the door without pulling the dash assembly out, then u might as well fix the problem,

Nov 06, 2008 | 1997 Mercury Mountaineer

3 Answers

2003 grand heats on driver side cools on pass side

see my post for wahoojones 04 grand cherokee with same problem, most likely broken blend door in heater housing. Check out the other post for other possibilities though.

Oct 14, 2008 | 2003 Jeep Grand Cherokee

Not finding what you are looking for?
2001 Jeep Grand Cherokee Logo

480 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides