too much heat!
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Joined: Mar 2018
Posts: 47
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From: Lancaster PA
too much heat!
91 Classic convertible.
My wife is very sensitive to heat. She is miserable if the temperature gets too hot. My elderly aunt's apartment is too hot for her at 82 degrees, year round.
So the problem with this is that whenever we are out in the Jag, and we come to a stop, waves of **very* warm to almost hair dryer hot air comes billowing up from under the car. Mostly on the passenger side.
Is this a thing with these cars? or am I missing a baffle or something?
I have electric fans in place of the mechanical one, which runs all the time, which could be pushing the air out that side I guess.
Its to the point that she really doesn't like riding in the car.
The a/c doesn't work unless I charge it for that ride, and doesn't last more than a a day or so.
Any suggestions?
Thanks
Steve
aka 71 MKIV
My wife is very sensitive to heat. She is miserable if the temperature gets too hot. My elderly aunt's apartment is too hot for her at 82 degrees, year round.
So the problem with this is that whenever we are out in the Jag, and we come to a stop, waves of **very* warm to almost hair dryer hot air comes billowing up from under the car. Mostly on the passenger side.
Is this a thing with these cars? or am I missing a baffle or something?
I have electric fans in place of the mechanical one, which runs all the time, which could be pushing the air out that side I guess.
Its to the point that she really doesn't like riding in the car.
The a/c doesn't work unless I charge it for that ride, and doesn't last more than a a day or so.
Any suggestions?
Thanks
Steve
aka 71 MKIV
Senior Member
Joined: Jan 2023
Posts: 177
Likes: 94
From: Atlanta GA
Step 1 fix the A/C. I was a PA boy for a while and now living in Georgia. Really re-sets your internal thermostat. What you describe is common with any car really. You need airflow to carry the heat away. Once you stop it just wafts up. Modern small engine cars suffer from this less than a big V12 but yes it is to be expected. Fix the AC and keep the roof up? At least you're driving a Jaaaaaaag.
Veteran Member
Joined: Jan 2013
Posts: 5,252
Likes: 3,513
From: Calgary, Canada
Yes, the think the first priority is to find the leak and fix the AC. A very common leak point is the plate on the back of the AC compressor that holds the hoses on gets over tightened and bends. Then it doesn't hold the hoses tight to the O rings and they leak. The solution is a plate twice as thick. GM cars from the 70's had them, or make one from 1/4" thick steel.
The other place for a leak is the shrader valve in the fill ports, those are easy to replace if leaking.
The engine heated air always comes out on the right side due to the direction of rotation of the fans. You'll notice it when at a stop as there is no wind to blow the hot air away.
Why have the electric fans running all the time? Why not tie it into the thermal switch with a relay and only have them run when needed? At highway speeds there is no need for fans to be running at all, save the load on your alternator.
The other place for a leak is the shrader valve in the fill ports, those are easy to replace if leaking.
The engine heated air always comes out on the right side due to the direction of rotation of the fans. You'll notice it when at a stop as there is no wind to blow the hot air away.
Why have the electric fans running all the time? Why not tie it into the thermal switch with a relay and only have them run when needed? At highway speeds there is no need for fans to be running at all, save the load on your alternator.
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