High rpm 3000-3500, arfter a few min down to 1200 jumps when i shift ito rev or drive then engine revs to about 3600 rpms ???
Here is what I did and worked like a charm.
I've removed the throttle body boot, set it aside.
On the throttle body, there is a 1/4 moon shape-like opening around the throat (Butterfly area) on the outer perimeter.
I've started the Van up, went to the area and covered it with my hand until the van died. I restarted it and ABRACADABRA. The computer Idle positioning sensor was reset. Don't ask me why it did but it did.
Good luck
Check for vacumme leaks sonds like a hose came off if nothing found replace teh idle air controll motor
SOURCE: 2004 stratus 2.7L Erratic idle, sometimes dies, sometimes revs at stops
hey-I have has this before different car but same - idle control valve is failing - computer at shop will pick this up on diagnostic
SOURCE: 1997 ram 1500 5.9 wont rev past 2000 rpm
well, the timing on your ram is computer controlled. is the truck in drive when this mis-fire occurs? or at idle? youve addressed part of your ignition w/the cap-rotor-plug wires. did you examine the old cap for carbon tracking? did you install the rotor properly? i know on my '97 ram the dist is feakin' buried in the engine it would be easy to rotate the rotor while installing/removing it so the timing mark is off. does your engine have the right plugs installed? your plug wires follow the correct firing order with your dist? you did not mention anything about your ignition coil. here is how to safely remove and check your ignition coil. disconnect battery-at the coil disconnect the lead wire (TOP) and primary (BOTTOM) from the coil. label your wires, or take a pic of your ign coil before you remove it so if you forget where the wires go, you have reference point. remove mounting screws and remove coil. clean coil to remove rust/dirt and wipe coil terminals off. inspect case for damage. with a multi-meter, check coil primary resistance by selecting ohm's and then place + and - leads on the pos/neg terminals on the coil, dodge used 2 brands of coils either a "diamond" or a "denso" primary resistance for the diamond mfr'd coil will be between 0.97-1.18 ohms. secondary resistance 11,300-15,300 ohms. Denso primary resistance 0.95-1.20 secondary resistance of 11,300-13,300 ohms. to measure secondary resistance place one of the leads to one the primary terminals and the other lead attatch to the large center terminal. compare your readings to the above values. if your readings are not within range of the above values, your problem is the ignition coil. other causes you may consider is faulty: speed sensor, throttle pos sensor/trans issues like bad pressure solenoid (actuates gear changes) a fault in your overdrive system. hope i have helped!
SOURCE: the engine knocks at higher rpm, only at high rpms
First no matter what check the oil level and then if it's a high rev tapping you need to allow the oil to flow through the engine block to try to coat and settle your valves.
But if it's really " knocking " sounds like your lifters and rocker arms are allowing your piston rods to clatter and that needs to be looked into fast.
SOURCE: .Ok I have a 01
It sounds to me like there is a problem with your Idle Speed Control solenoid/motor. (ISC) These can sometimes fail without turning on the Check Engine light. If the Check Engine light is coming on while you are driving, you should have the computer system checked out first. This will lead you to the proper fix.
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