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Chevrolet Venture Heating / Cooling

65 messages,  Last post on Oct 15, 2009 at 4:48 PM

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#56 of 65 Air not working by d_jray Aug 18, 2009 (6:10 am)
I had my intake gasket replaced.. When I took my 2000 Venture in last year, the air was working fine, Ice cold, but when I got it back, nothing.. just hot air blowing.. Does anyone have any ideas as to how this happened?   Thanks..
#57 of 65 Re: AC condensation leakage in cabin [johno99] by silhouette99 Aug 25, 2009 (11:06 am)
Replying to: johno99 (Aug 01, 2009 8:02 pm) I have the same problem with my 99 olds silhouette. The drain tube no longer, or never did, extend through the firewall. This summer, with more than usual use of the A./C we found the pooling water in the passenger footwell. But this problem has obviously been there a long time as wires are rotten and footwell is rusty.   I tried to get some help from GM to no avail.   I need to somehow get the tube to extend back through the firewall so that the water drips into the engine compartment and not into the cabin   Anyone got any ideas how to do this? Replies to this message: johno99 (Aug 27, 2009 6:38 pm)
#58 of 65 Re: AC condensation leakage in cabin [silhouette99] by johno99 Aug 27, 2009 (6:38 pm)
Replying to: silhouette99 (Aug 25, 2009 11:06 am) all the sister chevy Venture, Silhoutte, Montana have a rigid box that contains the evaporator ( little radiator) that gets cold and the air blows thru it to A/C (cool) the inside air. (it is major leauge buried up in the dash)   On the bootom of this box is a molded in plastic rigid tube that extends through the sheet metal body and the rigid tube runs into the engine area & it's suppose to drain out any water into the engine compartment kind of behind the alternator.   i have a junk yard by me and if the engine is out. then the tube is very visible,,it's not flexible and almost impossible to damage or misroute of have it fall of or something ( unles it's a nasty smash up. likley total the VAN). I basically learned that it's likley that some of the prtoective non absorbant foam stuff might have moved /shifted and may be clogging the outlet tibe hole so that the water doesn't drain out.   If you know how to add pictures to this site PLS let me know how to do it, i took a few with cell phone that shows a cut away.from a junk yard vechicle. I am looking at likley adding a hole on the drivers side of the box not to bad to get at that side, and then add a barbed fitting that i will silicone to the box and attach a hose that i will run down thru th body via a drill bit about3/8 th inch dia in the firewall( sheet metal in front of your feet) so the water can drain. I will also add a couple of holes below the carpeting to drain at least some of the water if it gets in there    to get at the condensor box looks like taking the entire dash out. I got to the heater core and can remove it if needed, if i could acess the A/c condensor then i would HOWEVER it looks like to get to it means removing the entire dash. It looks like a job in itself ( failry major thing to do)
#59 of 65 AC condnsate drain problem by jaxbud Sep 06, 2009 (11:29 am)
I solved the problem of water leaking inside on my 2001 Pontiac Montana by adding a PVC elbow to the short plastic drain sticking straight out through the firewall. A deteriorated seal behind the firewall allows the water to run back the drain spout and inside the vehicle. I inserted a short piece of 5/8 " heater hose in the 3/4" PC elbow to make it fit on the drain spout and added caulking at the back to prevent any water entering the firewall. This was done from under the vehicle. It's tricky but doable with patience. Of course you could rotate the engine forward and have better access to the drain.
#60 of 65 Re: A/C not cooling [cach22] by ketedford Sep 08, 2009 (5:19 am)
Replying to: cach22 (Mar 15, 2009 4:53 pm) Had the same problem with the a/c. Took it in last year and it was over $600 to fix. Good luck.
#61 of 65 Rad replacement 2001 Venture by jhd Sep 20, 2009 (11:17 am)
Local garage tells me to replace a radiator in 2001 Venture they need to empty AC unit because the rad comes out thru the front, so evaporator needs to be removed. Is this correct? Can it be removed from the back after removal of top engine mount brackets, air box and fans? I know tranny lines go thru the rad but that’s no problem. Rad leaks to near the drain plug area. I am hoping that this is a drain plug o-ring and not the rad end seal. I do not have towing package, so this is just a regular van. I also need to replace thermostat. Do I need any special tools for that or after removal of throttle body assembly and heat shield I can get to the bottom bolt? This is insane design to place thermostat like this. The van is not worth as much as they wanted to charge me for both of these jobs.
#62 of 65 Air flow on heat by bigduane Oct 05, 2009 (6:31 pm)
I have a 2003 chevy venture, when on heat it has little air flow from dash vents but blows strong on defrost or when on AC. Sounds like there is a damper partially open preventing air flow. What is the most likely cause.
#63 of 65 No heat in front heat in rear by greenhorn3 Oct 13, 2009 (2:03 pm)
I have a 1999 chevy venture there is no heat in front just blowing cold air but the rear heat works just fine .Would like to know if someone could help me with this problem as I really cant afford a mechanic. Replies to this message: azu (Oct 13, 2009 4:39 pm) greenhorn3 (Oct 15, 2009 4:48 pm)
#64 of 65 Re: No heat in front heat in rear [greenhorn3] by azu Oct 13, 2009 (4:39 pm)
Replying to: greenhorn3 (Oct 13, 2009 2:03 pm) Sounds like a clogged heater core. How is your coolant level under the hood? Replies to this message: greenhorn3 (Oct 15, 2009 4:48 pm)
#65 of 65 Re: No heat in front heat in rear [azu] by greenhorn3 Oct 15, 2009 (4:48 pm)
Replying to: azu (Oct 13, 2009 4:39 pm) Coolant level is fine and I checked the radiator for air pocket is there any way I can unclog the heater core my self are is that a mechanic only job.

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