2002 Jeep Grand Cherokee "high idle misfire" Questions

...high speeds ( about 60-75mph) the throttle doesn't respond well and has a jerking feeling to it. It has new plugs and wires. all fluids are fine. I'm replacing the throttle position ...

...is a totally other complex matter. post idle in a new post. please with engine size and mileage. with all facts. (what does not idling very good mean) misfires? low idle rpm? too

...high not 0.2v, say at idle the tps reads 1v but MAP is 0v or 5v.wrong. the key word here is gross, or means Accelerator Position Sensor (APPS) (jeeps new name for tps) Signal Voltage Too Low (my or ...

...and the throttle body and see what happens . please reply asap. and let me know. thanks You have a leaking injector Rough idle, poor gas mileage, Could be hard to start Runs fine at high ...

...idle speed control valve) gross misfiring for huge reasons. flooding, fuel pressure way to high or injectors leaking. a bad engine. if power is low. lots of tests, compression low? CAT melted, if ...

...codes showed engine running lean, #2 & #4 misfiring 5- Oil pressure gauge started running very high today, from 3 to 5. 6- I'm able to remove the key from the ignition, once Jeep is started and ...

...high speeds, so I replaced crankshaft sensor as well as camshaft position sensor, stopped stalling but problem cranking started codes for coil pack showed up I replaced coil pack and now it's ...

...misfire posts here 100s of time's in fact its endless.. short list. engine get to 180f and old, scan it to see that. ECT reads 180f. no DTC errors stored, I bet there are. 4.0L coil pack bad? sparks ...

...idle, not low;. a hard fact. some can't understand. stalling really does have 50 causes... im not guessing all 50 but, silly that, and common here. fuel pressure too high? map port clogged? ...

seems to skipping? At idle it feels like the engine is skipping or misfiring? How do I check the lack of a smooth idle? Check the condition of the spark plugs and high tension (spark plug wires) leads