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Chrysler Repair/chrysler grand voyager

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Expert: - 9/27/2011


Question
Hi roland as you suggested I've done the re calibration on the ac unit it worked perfectly all the lights stopped flashing but still no hot air!! The difference now being when I switch the unit off for 10 minutes or so then turn it back on I feel warm air coming through only for it to go cold again after 10 seconds or so. The unit is the digital type with controls for both driver and passenger. Hopefully this information well help many thanks doug

Answer
Hi Doug,
The next step is to check that the flow of hot engine coolant is unobstructed. In the engine compartment locate the 2 hoses that go through the firewall to the HVAC unit. After driving the vehicle far enough to warm it up touch each hose and determine if they feel equally hot which would verify that you do have good flow. If one is noticeably colder then there is insufficient flow. If that test passes then you will need to remove an underdash panel on the driver side to access the blend door motor, remove it, and check whether the blend door is binding or the motor not functioning. I can give you the details about that after you check the hoses.
Roland

Chrysler Repair

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Roland Finston

Expertise

I specialize in Chrysler/Dodge/Plymouth cars, minivans, and SUV's for the model years 1982-2008 based upon my 50-year DIY experience, factory shop manuals and wiring diagrams. I offer fast repair advice to help you minimize repair costs by helping you diagnose and do it yourself. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty.

I take questions one at a time between 8am and 10pm CT and attempt to answer within 20 minutes. "Maxed Out" means I am answering another question of otherwise busy, so try again later.

There are answers on file to more than sixteen thousand Chrysler questions at your finger tips: put a few key words in the "find" box (above) or click on "view past answers" for a chronological list of my q and a's. Don't use "Add to this answer" if you still have a question...ask it. As to trucks and jeeps I only have manuals for the '04-'06 model years.

Experience

Five decades as a 'do-it-yourselfer' on domestic and imported cars

Organizations
Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

Education/Credentials
Degrees in Physics/bruised knuckles.

Awards and Honors
"Top expert of 2010" and "2011" at Allexperts. Among top 50 experts for years 2006-2009 at Allexperts.

Quickest "average response time" at Allexperts (currently no. 1).

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