Question about 1993 Jeep Grand Cherokee

1 Answer

Blower motor starts and stops

Blower motor will go on for a minute and then stop. It starts about 10 minutes later and stops. I already replaced blower motor and blower resistor board. Same problem. Please help.

Posted by on

  • ducoti1 Dec 06, 2008

    Hi I have a similar problem with my 96 s10 blazer. The blower motor only runs in high speed and that's ok with me, but since I got this S10 the blower will run then shut off and a little while or a long whil wil start up again. As I am not a mechanic Once when it was not blowing I used a wrench and tapped on the relay closest to the blower moter and it started up. Once when I turned off the engine the blower kept running and I again tapped it and it shut off the blower motor. Should I replace that relay and on another note, ther is a cluster of three relays there, are they all the same?




1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 115 Answers

It sounds to me like an 'intermittently open circuit', or in plain language, when some part of the heater's circuit heats up a connection somewhere in the circuit 'opens up' stopping the flow of electricity. Then (10 minutes later?) when the circuit cools again the connection 'closes' again until warm. I would trace all the wires in that circuit from the fuse box to the blower motor (including fuse box & fuse) and look for broken or cracked insulation; make sure all connections are tight; I'd certainly check the heater's 'setting' switch (off,high, low switch) on the dash. It could also be a fusible link. This is a piece of wire somewhere in the circuit that 'feels' different than the other wire, more 'rubbery' and not as stiff. It's actually a little thinner wire inside than the rest of the circuit made to burn cleanly through (acting as a type of fuse) rather than over heating the circuit itself The problem has to be in this circuit, and something that 'opens' when heated. Good luck!

Posted on Nov 24, 2008


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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Blower motor coms on when i shut car off

So does mine, the blower fan will just run till the temperature sensor reaches the set point, usually a few minutes. If it does not stop within 10 minutes you need to have the temperature sensor checked out.

Jul 15, 2014 | 1999 Cadillac DeVille

1 Answer

1993 chev g-20 van. Heater fan sometimes just quits, then a few minutes later comes on.

You'll need to know if the blower motor has power and ground when it stops running. Could be the blower motor, the resistor, or a wiring problem.

Feb 01, 2014 | Cars & Trucks

1 Answer

The ac will run then the blower just stops. then it will come back on like 10 minutes later for just a couple minutes

Sounds like the blower motor is junk or has a bad connection. Check the ground on the motor. Does this car have manual controls or Auto temp control.

May 29, 2011 | 1998 Buick LeSabre

2 Answers


Sounds like the blower motor either wore out, or the relay is bad for it.

Good luck on this repair.

Jan 27, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

The blower motor stopped working, so I replaced the 30A heater fuse which was blown. Tried the blower again, and the fuse blows within a minute. Now when I try to replace the fuse with the battery...

disconnect the blower motor. if the fuse is ok then, the blower motor is bad. if the coolant leak is on the passenger floor, you may have a heater core leaking, although you may also smell a sweet odor from it.

Dec 20, 2010 | 1994 Ford Escort

1 Answer

Blower Motor Works but receives no power

It's either your blower motor switch or you have a short in the wiring from your switch to the motor or you have a bad relay.

Jun 10, 2009 | 2002 Nissan Maxima

Not finding what you are looking for?
1993 Jeep Grand Cherokee Logo

554 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

78257 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 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