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Heating & Cooling 2nd Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #11  
Old 08-01-2010, 02:12 PM
speedy41058 speedy41058 is offline
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there are two check valves to change. one is located on passenger side of the manifold and the other is off the fire wall. try changing them out and that should work.
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  #12  
Old 08-04-2010, 10:57 PM
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The same thing happened to my truck and this fixed it....


While washing the truck one day I noticed a hose off of one of those "canisters" under one side of the bed. (sitting along the frame) I popped the hose back on, and that fixed the A/C problem.

Not saying that is what is wrong with yours, but maybe you have a vacuum leak somewhere
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  #13  
Old 09-08-2010, 03:50 AM
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Mine does that every time after I get it serviced at the dealer. Because my truck is lifted when they put it on the lifts it pulls my vacuum line off and they are to dumb to recheck it so I just have to put it back on when I get it back.
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  #14  
Old 10-04-2010, 04:37 PM
xlstreetglide xlstreetglide is offline
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Quote:
Originally Posted by speedy41058 View Post
there are two check valves to change. one is located on passenger side of the manifold and the other is off the fire wall. try changing them out and that should work.
Pics please
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  #15  
Old 10-21-2010, 01:12 AM
mrsamtz mrsamtz is offline
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actuator on transfer case (4x4) was the remedy on mine....check valve replacement did nothing.......
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Old 10-27-2010, 07:15 PM
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Sounds like a vac leak for sure. All of these could be the culprit. If you can't find the leak, put a check valve on the vac line itself where it goes into the firewall. Assuming yours is the same as my 01 1500 with 5.9, its the vac line that goes thru the firewall along with the A/C lines. There is another one above that which goes into the cowl area. If this fixes the problem then you either had a vac leak or bad orig check valve. If you replaced the orig check valves, keep looking for the vac leak but at least now your vent problem is working. BTW, make sure you put the check valve on the correct way. Generics from Autozone etc.. can go on backwards so take note and let us know what happens.
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  #17  
Old 03-31-2014, 12:49 PM
mrsamtz mrsamtz is offline
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it indeed was the vacuum/check valve on the transfer case......
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  #18  
Old 04-08-2014, 10:11 AM
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Quote:
Originally Posted by mrsamtz View Post
it indeed was the vacuum/check valve on the transfer case......
OK,,,so can I get 3 check valves, all the same,and replace ?
2 under the hood.1 on transfer case
do the "autozone boys" know the right ones or should I remove old n take em in ?
where might this transfer case valve be ?
pass side ? drivers ?

VERY irritating lil prob ! NEEDS to get fixed

I know its a pain,,,but pics would be great !
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  #19  
Old 04-10-2014, 02:25 PM
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Any new info on this and/or pics? I'm having this problem on my '97 and sure would like to be able to see pictures of what I am supposed to be looking at.

Thanks,
Josh
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