(1) the transmission makes a sound when started cold. It sounds like a large vacuum leak but it goes away after about a minute. The sound is also heard under when pull hills.
(2) the transmission downshifts and into passing gear on hill way before it should.
(3) Engine has a miss when started cold and it does not have the power it should when warm.
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Re: 2001 dodge ram 1500 extended cab
Firstly, this is assuming that this is a 5.2 or 3.9 engine. The newer 4.7 modle would be totally different.
Sounds like a intake gasket issue(#3) intake gaskets and a belly pan gasket were quite common place one these modles.
(#2) The passing gear or kickdown is adjustable at the throttle body
(#1) This sound is quite likely normal for this truck. Have heard of many trucks sounding the same and at the time it was normal.
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A Large leak is almost never a gas cap, thats usually the small leak. Dodge uses cheap hoses that crack badly. Check the canister in the Engine compartment, passenger side. Then check passenger side behind the cab by the frame. 2 canisters and hoses leaving that ,often cracked. Last is a piece that connects from the hard steel lines near the oil pan....one of these three usually
Sounds like you either chipped a tooth of one of the gears or something came loose inside. I would not drive it at all You could make it a whole lot worse if there is a good sized chunk of metal floating around in there. Take it to transmission shop or better yet have it towed!!! If whatever is in there lodges between a couple of the gears you will be spending a lot more money trying to get it repaired. Good luck!
sounds like a vacuum leak. spray w-d 40 around vacuum hoses to find out. intake manifold might be leaking or sucking air as well use w-d- 40 there as well. if it has a turbo charger it may be going out. water pump, alternator and belts can make winning noises as well.
The temp blend door is operated by a vacuum motor.At higher engine rpms the manifold vacuum decreases.Most manufactures incorporate a vacuum storage tank to compensate for this lose of vacuum.So it does sound like you have a vacuum leak to the ac control unit.There should be a vacuum line going through the firewall into the cab.Inspect this line for leaks.Good Luck!!!!