Question about 1998 Pontiac Bonneville

1 Answer

1998 bonneville heater air

I have a 98 Bonneville blower motor works great but I have a very weak air flow at floor ,defrost and vent

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 40 Answers

Sounds like either the door isn't opening all the way or some of the tubing has either come off or has holes.

Posted on Dec 31, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 72 Answers

SOURCE: air flow in car vents low

Sounds like the flap that controls the direction of air flow is stuck in the wrong position. Possibly a vacuam line off the actuator.

Posted on May 30, 2009

  • 2 Answers

SOURCE: 1998 Bonneville SLE A/C

Look on the passengers side of engine there is a vacuum going to the intake manifold on the back side if this is cut or torn the vacuum won't work properly.You have to follow the line to where it has a fuse panel along the firewall there it goes into the vehicle...

Posted on Mar 21, 2009

  • 1810 Answers

SOURCE: 1990 grand prix...heater blower has weak air flow

sounds like a stuck door in your heater box buy a chilton book from chapters and ues as a dissassembly reff

Posted on Jan 08, 2010

  • 36 Answers

SOURCE: 98 bonneville , blower only

This is usually caused by a control door inside the housing for the heater. Sometimes pens or other obstacles go down the defroster vents and block the doors. Lay on the floorboard while someone controls the heat and vent controls. You should be able to see the arms controlling the vents and heat. You may have to remove the lower dash covers to gain access to see these controls. Also check to see if there are any engine vacuum leaks. The heater and vent controls are ran by vacuum sometimes.

Posted on Dec 29, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 98 bonneville se. the blower fan only comes on when the knob is all the way up and it ONLY blows heat and absolutely no cold also the air only blows out the defroster and the floor


How did you test the A/C system ? Hook up gauge manifold , test A/C pressures ? Manual or automatic climate control ? The blower motor only working on high means the blower motor resistor is bad ! Did you hook up a scan tool an check high an low pressure switchs inputs to the PCM - engine computer . Does the A/C compressor clutch engage ? turning on the compressor ? Moving the mode switch does nothing . Doesn't move from floor to vent to defrost ? Probably the mode door actuator ! Don't think the HVAC control panel is bad . Just a few little things . Pushing the A/C button on the control panel just send a electrical signal to the PCM , the PCM will energize the A/C clutch relay , turning on the compressor .

The Trainer 40 When the compressor won compress

Blower Motor Problems Auto Repair Help

Do you know how to test automotive electrical circuits ?

Heater Blower Motor Troubleshooting


May 19, 2017 | 1998 Pontiac Bonneville

1 Answer

2004 bonneville air only flows out of the vents, will not switch to defrost or heat. Blower and temperature are fine


Dash Switch Assembly's are 90 % the cause of this Problem since they are Made of all Plastic Parts but every once in a while You get a bad heater control Module.

Sep 25, 2014 | 2004 Pontiac Bonneville

1 Answer

Weak hvac air flow blow motor works great


tear apart ducts and check for nesting issues-Denny

Dec 31, 2013 | 1998 Pontiac Bonneville

1 Answer

I have a 1998 Pontiac Bonneville and the blower for the heater quit working. Could any one tell me what the possibilties of what is wrong with it?


There is a speed resistor that can open stopping current flow to the motor. The motor itself can be open. The fan control switch can be bad too.

Oct 29, 2012 | 1998 Pontiac Bonneville

1 Answer

Looking for vent flap modulator....ac is cold but flap is closed and wont let air flow into car interior..what is the real part name...the car is a still nice 98 pontiac bonneville that is very hot to...


Hi!!
The part is called Blend Door Actuator, it is located on the passenger side under dash, behind glove compartment, on the blower motor housing, is held by two or three screws and has an electrical connector plugged into it. You can get a replacement at almost any auto parts store.
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Mar 19, 2011 | 1998 Pontiac Bonneville

1 Answer

98 bonneville , blower only blows cold air , replaced control head and thermostat, heater core is good , there is hot air at the blower motor


This is usually caused by a control door inside the housing for the heater. Sometimes pens or other obstacles go down the defroster vents and block the doors. Lay on the floorboard while someone controls the heat and vent controls. You should be able to see the arms controlling the vents and heat. You may have to remove the lower dash covers to gain access to see these controls. Also check to see if there are any engine vacuum leaks. The heater and vent controls are ran by vacuum sometimes.

Dec 29, 2010 | 1998 Pontiac Bonneville

1 Answer

98 bonneville-heater does not blow hot air. Coolant level is good,tstat works, I have flushed the core even though it wasnt clogged,blower works.I have a digital thermonter for pipes,it clamps on to the...


Well looking at your tests here the only logical explanation is that you have a bad blend door switch, blend door servo, air leak in the control valve for the blend door, or the blend door has broken off in the air duct or some other obstruction in the air duct blocking the flow of air to the heater core.

Jan 20, 2010 | 1998 Pontiac Bonneville

1 Answer

Air flow in car vents low


Sounds like the flap that controls the direction of air flow is stuck in the wrong position. Possibly a vacuam line off the actuator.

May 30, 2009 | 1988 Pontiac Bonneville

1 Answer

Air comes out of the defroster and floor vents but not the air co


under the hood on the firewall there is a square boxlike cover beside the maxifuse&relay. there is a vacucum hose there that controls the vent shutoff had same problem with my 93 bonneville sse when purchased, check to see it has no cracks or has pulled out of rubber connecter .

Mar 24, 2009 | 1997 Pontiac Bonneville

Not finding what you are looking for?
1998 Pontiac Bonneville Logo

75 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

77169 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8732 Answers

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

Answer questions

Manuals & User Guides

Loading...