You are here: Forums Vans & Minivans Pontiac Montana Pontiac Montana Heating / Cooling Issues

Pontiac Montana Heating / Cooling Issues

40 messages,  Last post on Nov 27, 2009 at 6:39 PM

You are in the Pontiac Montana Forum. Your Host is Karens

What is this discussion about? Pontiac Montana, Pontiac Montana SV6, Heating / Cooling, Van

Messages Page 3 of 5 1 2 3 4 5 Prev Next Last

Go To Msg # Search This Discussion

#18 of 40 Re: engine temp. rises more than half in traffic [rsarnol] by akello Jan 28, 2007 (7:35 pm)
Replying to: rsarnol (Jan 27, 2007 6:27 pm) My husband and I have the same problem but ours eventually overheated on the interstate one evening. We then had to replace the water pump and then the temp. gage never went up. It just started today but the low coolant light comes on and the heat gets cold like the AC is on. When the coolant light goes off the heat gets warm. We have put coolant in and there is still the same amount in. When the light comes on the temp gage will go up really high and when it goes off the temp gage will go down. We have been told to replace the thermostat. Does anyone have a suggestion??
#19 of 40 Re: 99 montana...hvac....no heat!!! [ssullivan] by sherrylise Feb 07, 2007 (7:52 am)
Replying to: ssullivan (Oct 07, 2006 10:07 am) Hi I have a 97 Transport/Montana and I am having the same problem I live in Manitoba and it get's to like -40 and I have no heat have you gotten the answer to your question, I have two kids and we freeze in the darn thing, we tried adding excellent coolant but still nothing. It totally suck if you have any suggestions can you let me know Thanks, Sherry
#20 of 40 99 montana...hvac....no heat!!! [ssullivan by jegjc Mar 15, 2007 (5:58 pm)
May be you need to clean the whole heating system (may be the little heating rad is plugged). Is your thermostat in good shape or had been changed. If the coolant is dirty... change and have a good flushing and cleaning.     jegjc   québec city canada
#21 of 40 Heater Issues by mrall Apr 16, 2007 (6:13 am)
I have a 2001 Pontiac Montana with about 130,000 miles. A couple of weeks ago the heat stopped working and the temp guage was running on the high side. I started looking around for some information on this particular issue on the internet to see what could be causing it. Based on what I could find, I decided to start with some of the minor parts first to see if they would fix the problem. I bought a new waterpump (less than $30 at the local auto parts store) and a new thermostat. At the same time I bought a new serpentine belt because you have to take the old one off to fix the waterpump. The waterpump on these cars is actually pretty easy to replace as it is up front at the top left of the engine. I think most mechanically inclined people could tackle it themselves. The thermostat is another story. I bought an AC Delco replacement for $15 at the auto parts store. It is really hard to get to. I think I saw another post mentioning this but it is on the right side of the block behind one of the exhaust manifold pipes/shield. The screw at the back is very difficult to get to. I did manage it but I have small hands and I could bend my arm (very uncomfortably) to get to it. I don't know how they do it at the dealer but I wouldn't be surprised if they take off some parts to get in there. I took off the air filter and the hose that runs from it to the throttle body which helped. While I had that off, I replaced the air filter which is not easy as anyone knows who has these vans. At any rate, so far, the temp guage is running more in the normal range so I'm hopeful it is fixed. I think the thermostat may have been the issue as the waterpump I replaced did not look bad and still turned freely. Now my concern is that I may have a manifold gasket leak. The lower manifold gasket seems to have some seepage. I haven't noticed a large loss of coolant though so if it is leaking, it may be slow. I'm anticpating it going at some point based on the history of these engines. If anyone wants more details on what I did for these repairs, let me know. I'm just a shadetree mechanic so what I know is limited. Replies to this message: mail (Jan 17, 2008 6:25 pm) kjwerner01 (Feb 19, 2008 5:06 am)
#22 of 40 Rear Air is Hot and Loss of Blower Power Up Front by mlkutter May 02, 2007 (8:14 pm)
The rear air blows hot air. The front air works but doesn't seen to blow at full force on high anymore. Any suggestions? Replies to this message: richardp2 (Jul 25, 2007 1:34 pm)
#23 of 40 Re: Rear Air is Hot and Loss of Blower Power Up Front [mlkutter] by richardp2 Jul 25, 2007 (1:34 pm)
Replying to: mlkutter (May 02, 2007 8:14 pm) I am having somewhat the same problem with my 1998 Montana. It just started a few days ago not blowing any air of any temp out of the A/C vents. I read another blog here and am thinking a vacuum hose maybe loose or broken that controls the linkage of the blower. I can hear the blower fan blowing it just doesn't come out of the vents properly. If the vacuum trick works I will write back.
#24 of 40 Two cold by fixcar Oct 19, 2007 (2:59 am)
I have a 2000 Montana that I purchased from a neighbor two years ago. It runs great now, but I am not looking forward to winter, as the so called "heater", puts out such a little amount. Everything in the climate system has been checked/replaced (including the thermostat)and still no heat! I am thinking that there might be an aftermarket electric type auxiliary heater available? These were available years ago, but I think there were fire related problems, so they took them off the market? Are there any new realistic ideas of how to get more heat? What was GM thinking; making a car with no heater?
#25 of 40 2002 no warm air by jim639 Nov 27, 2007 (3:06 pm)
Help! My 2002 Montana will not put out any warm/hot air. With the temp control at full cold the air moves just fine. The engine runs just fine and at normal temperature. When I turn the temp to hot the air flow goes to nothing and I hear the fan running just fine. Is there a door directing air over the heater coil? Where is it and how do I get to it to see if it is working? Thank you for your help!!! Replies to this message: MKshjjcarr (Dec 13, 2008 2:51 pm) 24randyo (Feb 08, 2009 4:02 pm) kennie (Feb 09, 2009 10:25 pm) and 1 more...
#26 of 40 Re: Heater Issues [mrall] by mail Jan 17, 2008 (6:25 pm)
Replying to: mrall (Apr 16, 2007 6:13 am) Hi Mrall, your posting was Really helpful for me. I was wondering if you had to drain coolant from the engine in some way in order the change the thermostat? I can't seem to find any information on that and I was really impressed that you were able to replace it with only having to take off the air filter and tubing to the throttle body ! Thanks again !!! K
#27 of 40 Re: Heater Issues [mrall] by kjwerner01 Feb 19, 2008 (5:06 am)
Replying to: mrall (Apr 16, 2007 6:13 am) We replaced the thermostat in our 2001 Montana. Now it seems even worse! The temp goes up very fast when your driving and you have to turn the car off and release pressure/steam from the bleeder vavle by the thermostat. Is it possible to put the thermostat in wrong? Any suggestions you might have would be greatly appreciated!

Messages Page 3 of 5 1 2 3 4 5 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Vans & Minivans Pontiac Montana Pontiac Montana Heating / Cooling Issues