Most likely a vacuum leak turn on the vehicle and listen in the engine compartment and listen for the sound of air escaping from a hose. Replace the hose and your problem should be fixed (i had this happen to my 1993 s10 blazer)
2001 dodge ram 1500 ac and heater flow regulator switch does not work. works only on defrost. How to fix?
No it does not.
inside transmission
It is threaded into the transmission near the shift linkage
Dodge does not use inertia/reset switches.
The 1995 Dodge 1500 RAM pickup truck air conditioning low pressure switch is located on the top of the accumulator.
bad brake light switch
how to remove and replace transmission fluid pressure switch on a 2002 dodge ram 1500
It is screewed into the top of the engine block right behind the distributor.
Do you take the steering wheel off to get to the ignition
1500 chervrolet truck need a motor
call a lock smith .