Question about 2001 Pontiac Montana

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2001 montana A/c does not cool down rear passengers

When climate control is used A/C works on front but does cool at the rear of van?

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Check to see if the cabin filter is clogged witch will restrict air flow and limit circulation. the filter box is located in the glove box.

Posted on Aug 28, 2009

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Posted on Jan 02, 2017

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I have a 2004 chev Express box van and my tail lights wont work every blinker works just not the lights both sides replaced bulbs still nothing


Fuse Usage 1 Climate Control 2 (HVAC) 2 Compass 3 Ignition Switch, Theft Deterrent System Module (PK3) 4 Upfitter Courtesy Lamps 5 Climate Control 1 (HVAC) 6 Empty 7 Instrument Panel Cluster 8 Audio System, Chime 9 Auxiliary Park Lamp 10 Auxiliary Trailer Back-up Lamps 11 Remote Function Actuator, Tire Pressure Monitor (TPM) 12 Climate Control (HVAC) Controls 13 Trailer Park Lamps 14 Front Park Lamps 15 Taillamps, Back-up Lamps 16 Empty 17 Steering Wheel Sensor 18 Outside Rearview Mirror Switch 19 Empty 20 Empty 21 Rear Defogger 22 Outside Rearview Mirror Heater 23 Empty 24 Empty 25 Cargo Door Unlock 26 Rear Door Lock 27 Front Door Lock 28 Rear Passenger Door Unlock 29 Upfitter Park Lamps 30 Front Passenger Door Unlock 31 Driver Door Unlock 32 Airbag System, Automatic Occupant Sensing (AOS) System 33 Right Rear Park Lamp 34 Left Rear Park Lamp 35 Upfitter Auxiliary 2 (J-Case) 36 Upfitter Auxiliary 1 (J-Case) 37 Rear Blower (J-Case) 38 Empty (J-Case) 39 Run (High Current Micro) 40 Park Lamps (High Current Micro) 41 Empty (Mini Micro) 42 Upfitter Auxiliary 2 (High Current ISO Relay) 43 Retained Accessory Power (RAP) (High Current Micro) 44 Rear Defogger (High Current Micro) chevrolet-express-fuse-box-floor-console-fuse-block-247x300-3m55w415sdhfmumhyuzqkab2-3-0.jpg

Jul 27, 2017 | Cars & Trucks

1 Answer

My climate control only blows out cold air but the rear climate control works as it should


Could be the controller or a faulty blend door.
The blend doors direct air thru the heater core and evaporator along with the vents. The controller uses electric motors to change the direction of air flow.

Sep 28, 2012 | 1999 GMC Suburban

1 Answer

I have the 2001 GC ES with dual automatic climate control. The heat works in the front, but blows ice cold in the back, at all speeds, no matter how long vehicle has been moving. I'm starting to wonder if...


If you have heat in the front the engine cooling system is operating normally (waterpump ok) If the rear hoses were rusted out you would have front issues too due to collant loss. I sounds like either the rear controller has a problem with the temperature door actuator or an electrical problem going to the actuator. They sometimes have a heater valve which shuts off coolant flow to the rear heater core. It is located in the engine, where the rear hoses split to the rear. They are usually vacuum operated, possibly the valve or vacuum issue, check there. Feel the rear hoses under the van with the rear heat on. One should be hot and the other warm (this would indicate the heater core and valve are functioning). If the rear fan works the fuse is ok for the controller.

Jan 28, 2011 | 2001 Dodge Grand Caravan

1 Answer

Air conditioning not working properly


Would have him check out side air temp sensor ,thermister and rerove control head and inspect for burned terminal.1st.

Jun 20, 2009 | 2002 Oldsmobile Silhouette

1 Answer

A/C not cycling and blowing hot and cold air.


Hello msbrig,
This is a REAL SWAG
(stab in the dark... (a bit reasoned))...

Confession... I'm no GM expert... but
General Motors & FRIDGIDAIRE
are the "GREATS" in automotive A/C.

and

This is the BEST DOCUMENTED QUESTION I have
ever seen (congratulations)...

I hope I am not doing a disservice by attempting an answer...

If your vents blow al any time... you ought disregard their behavior.. Likewise temperature controls...
and DUAL EVAPORATRS... front & rear...

The fact that your troubles are intermittent in the FRONT & REAR is a really great SYMPTOM...

You are MOST LIKELY looking at only two POSSIBLE PROBLEMS....

1. - Either your CHARGE is insufficient to keep
the compressor running.(pressure switch monitored)

OR

2. - You have a SATUATED DRYER which is allowing moisture to block your EXPANSION VALVES (internal ice) ...

External frosting is expected...
a lot of external FROST is an indication of #1. (above: low charge)...

A descent refrigeration person should be
able to tell you the HIGH and LOW pressure loads... and watch your system cycle for a few minutes... Which should be long enough to DETERMINE if you are experiencing
INTERNAL MOISTURE ISSUES...

Some folks ROUTINELY replace the ""DRYERS' (desiccant)


I do not... I use brains, gauges, experience... and your vehicles HISTORY

I am here most every day... Push comes to shove... I have the
Lincoln Navigator... dual EVAPORATOR system...
(I'll pull the book & take a look).

You can comment me back...

I bought ALL THE TOOLS years ago... NOTWITHSTANDING my amateur standing... I only let the JAGUAR DEALER jam me for an $800 Schrader Valve since 1965 (Mustang(all the rest... I did myself)).

Happy to chat... comment me back.
(again: here daily)


- Hope this inspires...

Carnac the Magnificent

http://www.rockauto.com/en/catalog/oldsmobile,2002,silhouette,3.4l+v6,1382295,heat+&+air+conditioning,a/c+receiver+drier+/+accumulator,6972

More Information for ACDELCO 1510088

Feb 27, 2017 | 2000 Oldsmobile Silhouette

2 Answers

Climate control air conditioner stops working due to incorrect ambient air temperature


Same car, same problem. Press MODE, FRONT and REAR buttons together to reset tempreture. You probably need to replace the sensor GM part number 15047946 it is in the front grill email me for a picture. chris.abbott@gmx.com

May 21, 2009 | 2002 GMC Envoy

1 Answer

1998 Olds Sihoulette van, A/C recharged. The rear air blows cold however the front vents still blow hot? Why?


your A C DOORS vacuum actutator is not working or getting vacuum.or doors stuck.if you got climate control .could be out calibration .the dealership has to do it.

May 05, 2009 | 1998 Oldsmobile Silhouette

1 Answer

Front vents will not work


If they are stuck on defrost,then the problem is a little vaccum line that comes through the firewall as all the climate controls are vaccum controlled,so look for a small green or black plastic line unhooked.

Dec 25, 2008 | 2005 Chrysler Town & Country

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