Ulysses
Enthusiast
Have the Viper Tech check out the idle motor.
Bad idle when hot.
- Thread starter Ulysses
- Start date
Gerald
Enthusiast
Go and buy a Idle control motor. They usually go bad periodically. I think they are around $100.00 It would be cheaper to just BUY one, install yourself, then to have your Viper tech check it out THEN install one if found bad.
Just my opinion..
Gerald
Just my opinion..
Gerald
I would check the battery voltage (even if it's new!) as the idle control MUST have maximum voltage to perform.... and if it doesn't, it definitely creates stalling when decelerating.
RockyTop
Enthusiast
Definitely check the intake manifold gasket. You can see a thin piece of metal (the gasket) between the intake manifold and the heads/engine. If it is wavy like cooked bacon, it is probably leaking and it will play hell with your idle. 97 GTS models are notorious.
I have had idle hunting/hanging problems and many suspected the idle motor. Some have even put a smaller inner diameter obstruction in the hose that runs into it (they actually used a socket from a socket wrench) and acheived some relief - - but I do not think it was permanent. Henessey discovered this fix, but again I do not think it was a permanent solution.
In my case, the first time it was the gasket. The second, the symptom went away after the computer was reset and appeared to be related to my Roe VEC gizmo voltage output to the TPS or Idle motor or something. My tech traced the varying voltage readings to the VEC. A reset of the car's computer and resetting of the VEC did the trick - - so far. FYI, my gasket was also getting wavy again but they checked it for leakage and found none. Probably just a matter of time until it does it again.
Sean Roe suggested that it could be fuel filter related. I have never replaced mine (22,000 miles; 4 year old car) so I probably will next time.
I have had idle hunting/hanging problems and many suspected the idle motor. Some have even put a smaller inner diameter obstruction in the hose that runs into it (they actually used a socket from a socket wrench) and acheived some relief - - but I do not think it was permanent. Henessey discovered this fix, but again I do not think it was a permanent solution.
In my case, the first time it was the gasket. The second, the symptom went away after the computer was reset and appeared to be related to my Roe VEC gizmo voltage output to the TPS or Idle motor or something. My tech traced the varying voltage readings to the VEC. A reset of the car's computer and resetting of the VEC did the trick - - so far. FYI, my gasket was also getting wavy again but they checked it for leakage and found none. Probably just a matter of time until it does it again.
Sean Roe suggested that it could be fuel filter related. I have never replaced mine (22,000 miles; 4 year old car) so I probably will next time.
Makara
Viper Owner
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by GETSUM:
I just bought a 1996 RT/10 and the car's idle surges from 300 rpm to 1000 rpm (up and down) after it gets hot. It doesn't do this all of the time but has done it several times and has died on me twice when pulling up to stop lights. It will crank right back up and then run just fine. I have taken the car to both local dealerships. The dealer with a Viper tech said no problem with the car it had to be the crossover pipe installed on the exhaust system! The next dealership actually put the car on the computer and said low voltage at the fuel pump. The battery has been replaced and the fuel pump supposedly checks out good. Any ideas? It is killing me to have a Viper and not be able to drive it out of fear of having to push it at every intersection!
<HR></BLOCKQUOTE>
My car started doing that the other day. Please let me know if you find out what the problem is. I find that if I blib the throttle just a bit when I pull up to a light everything is fine. I just feel stupid pulling up to every light revving the engine a few times. People think I am either showing off or trying to race.
I just bought a 1996 RT/10 and the car's idle surges from 300 rpm to 1000 rpm (up and down) after it gets hot. It doesn't do this all of the time but has done it several times and has died on me twice when pulling up to stop lights. It will crank right back up and then run just fine. I have taken the car to both local dealerships. The dealer with a Viper tech said no problem with the car it had to be the crossover pipe installed on the exhaust system! The next dealership actually put the car on the computer and said low voltage at the fuel pump. The battery has been replaced and the fuel pump supposedly checks out good. Any ideas? It is killing me to have a Viper and not be able to drive it out of fear of having to push it at every intersection!
<HR></BLOCKQUOTE>
My car started doing that the other day. Please let me know if you find out what the problem is. I find that if I blib the throttle just a bit when I pull up to a light everything is fine. I just feel stupid pulling up to every light revving the engine a few times. People think I am either showing off or trying to race.
