posted 07-20-2016 08:11 AM                  

Had to change my radio.

Going to get my factory radio checked ,to see if its something inside

posted 07-20-2016 08:02 PM                  

For the past couple of months, I have been experiencing some AM radio noise and a random misfire engine code on my 2002 Prowler. After some research, I found that the Prowler engine has 2 ignition capacitors which are located on each side of the engine block. I picked up 2 of these at the Chrysler distributorship. Mopar #04606866AA @ about $14 each. The 2002 Service Manual, page 8I-4 shows the locations and removal/installation procedure. After replacement, the radio noise along with the random misfire code have stopped. I have also noticed an increase in mileage and acceleration.

posted 08-21-2016 12:16 PM                  

Does the noise change with engine RPM?

posted 08-22-2016 12:00 PM                  

Yes, the engine RPM is dependent noise.
also has the speakers a pulsating noise when I drive on a
rough road.
which would also interest me, where is the capacitor
installed.
best regards from Germany

posted 09-16-2016 01:50 PM                  

I have been suffering with this problem forever and didn't want to upgrade my stereo for fear I would have the same problem. Yes, I also had the experience of the radio noise going away once you put the car in reverse. That was strange to say the least!

Note the picture below... the new capacitor is slightly larger and the large tab is integrated INTO the capacitor.
The older tab shown is bent where it mounts to the cylinder head because there are 2 raised knobs on the mounting surface. I used my dremel tool to level off these knobs so the new capacitor can mount flush. (on both sides of the engine). So far the driveway test shows NO radio noise from the engine with the top up. I will update this post once I go for a driving test.

9-17-16 update...
My driving test revealed that the high pitched whine in the speakers is STILL there. So....No noise in the driveway, but noise on the road. (Perhaps that eliminates the alternator atleast.) At this point I can only believe that the radio is defective. Could be a ground issue for the radio itself. I'm out of ideas for now.

posted 09-19-2016 08:55 PM                  

If you notice, both have a Dark Green & Orange wire going to them.

This is the location of the Drivers Side Capacitor

posted 09-20-2016 06:27 PM                  

quote:

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Originally posted by waynec:
I bought mine from Advanced Auto Parts last week.

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Can you post a link to the Advanced website or their part number? I would have never guessed that you could get one from anyone but the dealer.

posted 09-21-2016 01:24 PM                  

First I'd like to thank all those who share their knowledge with the newbies.

The helpfulness here in the forum is unique, special thanks to padroo

Today I have installed the capacitors it was very simple.

tomorrow I'll do a test drive,

I am confident the noise is past

posted 09-21-2016 01:36 PM                  

quote:

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Originally posted by padroo:
[B]This is the location for the Passenger Side Capacitor

If you notice, both have a Dark Green & Orange wire going to them.

This is the location of the Drivers Side Capacitor[/B]

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posted 09-21-2016 07:54 PM                  

I found this in the Prowler manual under Audio Systems, page
8F-1

Here is the Audio Diagnosis page 8F-3