I have a 2001 dodge caravan sport with the 3.3 and 165,000 miles. Last year it had a slight misfire engine light code and replaced the plugs and wires which looked original. Over the last few months it has a lil skip on accelation and a stutter if you step on it once moving. When just idleing and you turn on the A/C it gets even worse. Im leaning towards the fuel injectors need to be replaced/cleaned. I believe they are original also. Any thoughts? Is there a good way to clean them?
thanks in advance for any and all replies

 

Here is a TSB that may help. Adding to this TSB, I would remove the throttle body and clean and the IAC too.

SUBJECT:
Engine Sag/Hesitation And/Or Closed Throttle Start Stall
OVERVIEW:
This bulletin involves replacing the Throttle Position Sensor (TPS).
MODELS:
2001 - **2002** (RS) Caravan/Voyager/Town & Country
2001 - **2002** (RG) Chrysler Voyager (International Market)
NOTE: **THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 3.3L OR 3.8L
ENGINE AND BUILT BEFORE OCTOBER 01, 2001 (MDH 1001XX).**
SYMPTOM/CONDITION:
Engine hesitation/sag, closed throttle start/stall, and/or Diagnostic Trouble
Code (DTC) P0123 – “Throttle Position Sensor Voltage High”. May be more
prevalent in cold temperatures below 0 C. (32 F.).
DIAGNOSIS:
If no DTC’s are present or DTC P0123 is present, perform the Repair Procedure.
If other DTC’s are present further diagnosis is required.
PARTS REQUIRED:
Qty. Part No. Description
1 04686360AB Sensor, Throttle Position
REPAIR PROCEDURE:
1. Disconnect the negative battery cable.
2. Remove the electrical connector from the Inlet Air Temperature Sensor.
3. Remove the air cleaner box lid. Remove hose from throttle body.
4. Disconnect the electrical connector at the TPS.
5. Disconnect the electrical connector at the Idle Air Control (IAC).
6. Remove the three (3) TPS mounting bolts and TPS.
7. Reverse the previous steps to install new TPS, p/n 04686360.

 

Thanks for the info MT... will do and let you know.

 

dear master,
I changed it out and it helped but its still there. looking into the throttle body there is a lot of carbon build up in there, I cleaned the butterfly all up, but could the injectors be dirty? whats the best way to clean that mess up in there? they are original with 160,000 plus on them
thanks!

 

any other suggestions guys...

 

You can try replacing the TPS, unless you already have. Sure you can do a fuel injection service.

 

I replaced the TPS as described in the TSB...
and for more info... it gets worse when its rainy out or when you turn on the a/c...and better when its cold and dry

 

Check to see if you have a wire harness for the fuel injectors and see if they are melted.