Question about 2000 Chevrolet Silverado

1 Answer

Blower blows weak with A/C on; When A/C is off blows strong

When A/C is switched on, it blows very weak. When its switched off, the blower blows strong. It blows cool just fine, but I do have a suspicion that it is blowing hot down near the drivers pedals. I believe I have spotted the blend door actuator down there near the gas pedal, and I was wondering if this was the issue. Or what it could possibly be, and how to check.
Its actually a 1997 Silverado 1500.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

This is not a blend door problem. It is a problem w/ your AC / Heater blower motor Resistor. When this goes out some vehicles will blow intermitantly. Others will blow strong in the low position and low on high. On my 2004 Silverado the resistor is located under the glove box mounted w/ 4 screws. It is a small black box no larger than a cigarette package. Laying flat on the floorboard look up and towards the center you shouldn't be able to miss it. Easy to change, simply plug the new one in and screw back in place. Took me 5 min.

Posted on Oct 07, 2009

1 Suggested Answer

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 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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Blower blowing just not much


in all modes, even moving real fast in fresh air mode
no vent blow? weak in hot mode and cold?????????????????

no year stated,so answer will be kinda(weak,)
(weak and. tragically generic, is that good?, no)
1993?
see? this is 2016, so.....
lots of EVOLUTION to the EXTREME here.
for sure the climate control option.?
like Gemini 1 to Space X?


weak blower, the filter is dirty:?
hvac self tests fail? (read hvac page in FSM see it?) ask.
12vdc to blower pins, on high?
yes, then blower is weak(means bad)
or there are restrictions, then
top restrictions are dampers stuck
or
controls to dampers MALF'ING.
or dead mice nests,

TELL MORE GET MORE.?

Jan 31, 2016 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Wondering why my 2011 suzuki sx4 ac blows cold but not very hard even on high


blower weak?
or blower ok, but cold weak.
my guess, just blower, weak
if car has the optional HVAC filter replace that.
check dampers.

Aug 14, 2015 | Suzuki Cars & Trucks

1 Answer

The A/C is blowing cold air but why is the blower weak?


Check that you have the selector set to blow out the vents and not the defroster or the vents by the footwells. Does it sound loud like it should be blowing strong or is it weak? The selector 'doors' under the dash work off of engine vacuum lines. If they won't 'select' when you change the knobs, there may be a vacuum line leaking. Also, make sure the blower motor is not all clogged up with leaves and debris.

Jun 11, 2015 | AC Cars & Trucks

1 Answer

Sentra AC


There's a 10amp fuse that powers the ac clutch relay and compressor. There are 15amp fuses that power the blower motor and the ac control switch. All of those fuses get power from the key switch. The resistor and fan switch provide the ground circuit for the blower motor.
I would want to know if those fuses are getting power, and if the control panel is working. You should be able to ground the blower motor and make it run on high, and that should not have any effect on if the ac compressor is running or not.
It could be a key switch problem in that the circuit is not strong enough to handle the load from the blower and the compressor at the same time.

Jun 21, 2013 | Cars & Trucks

1 Answer

2002 Chevrolet Malibu blower motor weak in all settings.


resister switch may be weak, replace it, it looks like a coil spring, under dash, also clean all connection @ blower motor under hood

Jan 30, 2013 | 2002 Chevrolet Malibu

1 Answer

My 2003 F-350 A/C blower doesn't blow strong.


may have a cabin air filter clogged. the filter is located behind the glove box. should be an access door on the HVAC box.

Jul 17, 2011 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

AC vents do not blow strong blow very weak fan running on hi


The blower motor resistor has to be changed. The part is in the wirng between the a/c control head and the blower motor.

You should take to a local shop for repairs.

Jul 16, 2009 | 1989 Buick Reatta

1 Answer

Weak air from vents


vent door is stuck

Jun 30, 2009 | 1990 Buick Reatta

1 Answer

Cold AC but weak Airflow---Also Driver side not as cold as passenger


The air doors are controlled by actuators that on of them or so may need replacing.

May 09, 2009 | Cadillac Seville Cars & Trucks

Not finding what you are looking for?
2000 Chevrolet Silverado Logo

239 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7688 Answers

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

Answer questions

Manuals & User Guides

Loading...