Question about 1993 Pontiac Grand Prix

1 Answer

Heater blower only works when you hit a bump - 1993 Pontiac Grand Prix

Posted by on

  • jvick2289 Nov 21, 2008

    heat is being produced,a/c is being produced...but fan/blower motor will not push the air! sometimes i hit a bump and it magically comes on,has a mind of it's own. 2001 bonneville sle



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Sounds like there might be a loose connection at the blower motor itself, or it could be an internal fault inside the motor. The blower motor should be on the passenger side floorboard underneath the dash. If you have the switch on high and smack the motor then it will most likely come back on. You can either by a new blower motor from a parts store, or go to a junkyard and risk if that one even works.

Posted on Nov 26, 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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

When I hit a bump the heater stop for a few seconds

Are you saying the blower motor stops working? That might be a sign of bad brushes in the blower motor? If that is the case, replace the blower motor. You could check the wiring connector for blower motor.
In the past, I have taken faulty blower motor apart, and those little brushes were wore down to the nub. A bump can cause the brushes to make better contact, or lose contact in your case.
Could be other issues, the blower motor needs voltage and ground. Just my opinion.

Feb 17, 2018 | 2006 Chevrolet Impala

1 Answer

Heater blower not working

Replace the blower motor; its bad.

Mar 26, 2014 | GMC Yukon Cars & Trucks

1 Answer

AC/Heater Blower Fan in 1990 LS400 works intermittently

Due to the age of your vehicle, the brushes in the fan motor are worn out. you will have to replace the fan motor, it is not serviceable.

May 30, 2017 | 2001 Lexus RX 300

1 Answer

My heater blower dosent work uless i hit a bump or something and if i hit a bump it gose back off

This is often caused by a lose cable to your blower motor or your blower could be going bad. You can this by removing the cover underneath the glovebox. This will give you access to the blower and harness.

Nov 08, 2012 | 1991 Honda Accord

2 Answers

My heater doesn't seem to work however for a few

Check for loose wires to the blower or the blower switch. Please rate my answer.

Nov 17, 2009 | 2002 Chrysler Town & Country

2 Answers

My heater in my 2002 Hyundai Accent quit blowing. I took the dash out where the stereo is to see what I could find and my dash lights quit working. I thought I had a lose wire of some sort because...

what you need is a new blower motor. It is located under/behind the glove box. The reason that it comes on when you hit a bump is because it jars the brushes in the blower motor to make better contact then when you hit another bump it losses contact.

Oct 30, 2009 | 2002 Hyundai Accent

1 Answer

Blower fan goes off with hitting a bump

Check to see if any of the wire connections are loose.


Mar 14, 2009 | 2004 Pontiac Grand Prix

1 Answer

Blower motor

I say it might not be the blower motor but your on the rite track!good place to start sounds like a loose wire check under hood on passenger side to see if your blower resistor speed switch is plugged in or it might been in passenger feet area above toes in heater box! I think passenger feet area might be the spot your looking for! a v shape plug! i think you will find it no problem!hope this helps

Dec 09, 2008 | 2001 Buick LeSabre

Not finding what you are looking for?
1993 Pontiac Grand Prix Logo

Related Topics:

147 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

79865 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

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

Answer questions

Manuals & User Guides