idle air control valve
 

i have a 1995 dodge dakota slt extended can 5.2L 2 wheel drive my idle air control valve keeps messing up i bought 1 from kregans about 5 months ago and about every month i have to tak it back and get another 1 it keeps messing up/going bad and bought on from autozone to and samething kregans im getting barg and warner and autozone got a duralast but they keep going out why would that be im puzzled.....

Although tons of new IAC are bad, I doubt your problem is constantly bad IAC's. I bet you may have a wiring problem or something else is causing idle problem. Like the notorious intake plenum or a bad EGR or a bad vacuum leak.

i did replace the plenium gasket egr i havent yet and vacume leak not sure but when i have the ac or heater on and i drive and have to put the gas peddle down the heater/ac goes fron the dash vents to the floor vent and i have it set to the dash vent could that be a vacum leak.?

No that is just a bad check valve in that line.

oh ya and i did check the vacum and it read i have 19psi is that good ?

The manual is not specific on a number. But 10 is minimal, IIRC the typical engine is 20.
Also it is not PSI, PSI is for pressure not vacuum. Vacuum is inch of mercury or something like that, I don't know it all. LOL

does nobody know anything about this on this forum 120 views and nothing

Did you check your EGR like I suggested? Don't keep on complaining no one is helping when you don't even do what others suggested to check.

yes bought a new one installed it still acting up

Did you start checking the wires for good continuity to the PCM?