Question about 1994 Jeep Grand Cherokee

1 Answer

I have a Grand Cherokee Jeep 1994 Estate. Heater problem

When the car is driven for at least an hour temp gauge will go just over the red mark but will still give no warm heat through the heaters in the car.

Posted by on

  • Richard Scordino May 11, 2010

    From your description, it sounds like you are low on coolant. Check this with engine cold. Add as necessary, not only to recovery bottle but to radiator itself! Then, while running, check for leaks (coolant had to go somewhere!!! Do not drive with this condition... you can do serious damage to the cylinder head.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

You may need to add coolant to the system, If it is full check to see if there is a valve on your heater hose running from the engine to the heater core. If there is, make sure the valve is in the open position when your heater is on and the engine is up to temp. If that doesnt help try flushing the sytem, you may have a plugged heater core.

Posted on Dec 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2003 jeep grand cherokee heater problem


Jeep Grand Cherokee is notorious for broken blend-air doors. This is the door inside the A/C-heater housing that switches the air from hot to cold. You must remove the dash to repair it.

Nov 13, 2011 | 2003 Jeep Grand Cherokee

2 Answers

2000 jeep cherokee sport. the "check gauges" light


check all hose clamps and tighten them up.Do not do this until motor is cooled down and add coolant to level mark on holding tank.

Apr 04, 2011 | 2000 Jeep Grand Cherokee

1 Answer

I have very little heat from the heater in my 94 jeep GCL. It went out at the same time the temp gage stopped working. I just had the engine rebuilt? What do I look at first?


Did you replace the thermostat? If it's bad your engine could be running cold, not letting the coolant get hot enough to get proper heat AND making your temperature gauge read cold.

Dec 09, 2010 | 1994 Jeep Grand Cherokee

1 Answer

The Heater in the car works but does not get warm.


1. Check the engine thermostat (see the temp gauge). Replace thermostat if necessary.
2. Flush the cooling installation in reverse flow direction, and change the coolant.
3. Bleed correctly the cooling system.
4. Clean inside the heater core by flushing in reverse flow direction. Check for leaks. Remove and change it if necessary.
5. Check the water pump & drive belt. Replace if necessary.

Nov 30, 2010 | 1994 Jeep Grand Cherokee

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

1 Answer

Im installing speakers, amps, ect. and since i purchased it used i don't have an owners manual for my 1994 jeep grand cherokee. i dont know which fuse is for the radio?


It should say on the fuse diagram on the cover. You might consider running a new wire directly from the battery, fused of course. Then run a big gauge wire directly to the chassis for the ground.


Please mark this helpful if it was.

Jul 08, 2009 | 1994 Jeep Grand Cherokee

1 Answer

1994 jeep grand cherokee wont start. it was driven to the gas station, put gas in it, and now will not start. The ac comes on and the radio plays. Tried to jump start still nothing


Check the gas you have filled up with, check compression on cylinder head, if deisel then check that the injectors aren't blocked and the heater plugs are warming..... hope this helps

Jul 07, 2009 | 1994 Jeep Grand Cherokee

1 Answer

I have a 1990 Jeeep Grand Wagoneer that has a fuel an engine temp


Sending unit for the fuel gauge is not grounding correctly or is bad. Temp sensor needs to be replaced.

May 12, 2009 | 1990 Jeep Wagoneer Limited

1 Answer

94 jeep grand cherokee oil pressure and engine temp?


I'm guessing your engine is'nt making any tapping noise with the low oil press.
Your oil pressure sending unit is most likely the culprit.
Is your car smoking when the temp. goes up?
You engine could be air bound or thermostat could be opening too late (might need new one).
PLEASE DO NOT OPEN THE RADIATOR CAP WITH A HOT ENGINE.

Oct 05, 2008 | 1994 Jeep Grand Cherokee

Not finding what you are looking for?
1994 Jeep Grand Cherokee Logo

106 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...