Intake Air Control?
#1
Intake Air Control?
All of a sudden Sat morning...started my '99 5.9L 1500 and it stalled right out.
I had to keep my foot on the gas to keep it running.
Battery is good, gas is good- no issues leading up to this.
I had a can of Intake Combustion Chamber Cleaner (Mopar) and followed the instructions.
Now it stalls immediately after start up, but after a minute or 2, it runs somewhat fine. I can feel it hiccup now and then.
The odd thing...cruise control doesn't really work now....it tries but then sputters as truck just slows down.
Sound like I should just replace the IAC or any other suggestions?
Thanks in advance!
I had to keep my foot on the gas to keep it running.
Battery is good, gas is good- no issues leading up to this.
I had a can of Intake Combustion Chamber Cleaner (Mopar) and followed the instructions.
Now it stalls immediately after start up, but after a minute or 2, it runs somewhat fine. I can feel it hiccup now and then.
The odd thing...cruise control doesn't really work now....it tries but then sputters as truck just slows down.
Sound like I should just replace the IAC or any other suggestions?
Thanks in advance!
#2
Sounds like you may have a vacume leak. Your plenum gasket could have blown a little ago and your just noticing it now. Take of your air cleaner, get a mirror and look down your throttle body and see if you have a sheen/puddle of oil in your intake manifold. If you do, your plenum is blown causing a vacume leak.
#3
#4
if you can keep it running by applying slight pressure on the gas pedal, then its likely the IAC motor, or a stopped up throttle body port that the IAC pintle goes into. or, sometimes it can be a faulty TPS.
IAC is on the back of the TB, 2 #25 torx, easy to change. its about $40-45 from any parts store. while the old one is out, poke a wire into the port and make sure its not stopped up. if you decide to spray some cleaner in there, don't lose the little red straw from a can of TB cleaner down the intake. if the new IAC doesn't fix your problem, then replace the TPS and keep the old IAC as a spare.
IAC is on the back of the TB, 2 #25 torx, easy to change. its about $40-45 from any parts store. while the old one is out, poke a wire into the port and make sure its not stopped up. if you decide to spray some cleaner in there, don't lose the little red straw from a can of TB cleaner down the intake. if the new IAC doesn't fix your problem, then replace the TPS and keep the old IAC as a spare.
#5
#7
I had a problem last spring with my IAC. I took the air intake off and found that there was crud built up around the tb butterflies and in the slot where the IAC has to move back and forth. I cleaned it out and presto, fixed. I replaced my air filter too, down here in georgia we get lots of dust in the air around this time of year