Troubleshooting help needed badly ! - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 6 (permalink) Old 05-01-2012, 05:49 AM Thread Starter
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Troubleshooting help needed badly !

I have a 2002 24-valve 3.5L ES that over the weekend has died on me. It is about to turn up 100k and has been largely trouble free aside from replacing an oxygen sensor, a water pump three years ago, and an oil pressure incident in October when it died at an intersection, restarted, died again, and coasted into a parking lot to find the oil level had gone ridiculousy low (yes, I had been checking it periodically and never saw leaks in my driveway). A couple of hours to cool, a quart plus of Havoline 5/W/30 and back on the road with no problems since. Had the oil changed days after with a popular brand for high milage cars.

. I've had a "check engine" light come on the last several summers. The guys at PepBoys and the Quick Lube said the code was Plenum something..(I've lost the ticket they gave me with the code). The QL suggestion was their high dollar high octane exhaust cleanse. As this has gone away every winter, and yet come back the last three or so summers, I confess I was not all that concerned, and thought just a faulty sensor, maybe related to our Florida humidity.

Drove to the grocery this past Friday, all good. Got in Saturday to go mail bills, would fire up, then die. Going by my previous oil problem, checked fluids and found the oil level down to around 1/3rd on the hashmarks. Added some oil again, no change. Also added some antifreeze as it looked low also. It'll fire up, rev, then die. Tries after, no ignition when I turn the key and daytime running lights go out, and the low oil pressure light comes on (this despite having topped off off the oil). I hear a hum in the background that I'm guessing is the fuel pump, then it stops. The only other clue is moisture on whatever seal this is on the front of the engine. I confess to being somewhat "car-challenged" and know the basic maintence routine but I don't even know what I'm looking at with this, as I don't (yet) have a repair manual. The photo attached is what I'm seeing, and an image search on Google showed something similar that was referred to as a coolant leak into the manifold resulting from an O-ring being warped by heat.

Any help with this pointing me in the right direction, or at least helping me being able to discuss this with a mechanic without confirming that I'm car simple would be greatly appreciated. I haven't worked since leaving the Navy, but have some recent opportunities hinging on dependent on reliable transportation.

Thank you!,
Russ
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post #2 of 6 (permalink) Old 05-01-2012, 06:40 AM
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Know when you last had the PCV serviced?? Not uncommon for good amount of oil to be trapped in that upper plenum, could be leaking from that plate.

The stain on timing cover is it oil?? Or is it antifreeze?? Either way, if oil has made it's way to the timing belt you are probably way overdue for timing belt/waterpump.

Could possibly have jumped timing but if you do the key dance (off-on [not start]off-on [not start]off-on [not start] and leave the key on [not start] codes ill flash in odometer P0***, finally ending D O N E. Betting code shows for cam/or/crank sensor.

Cam and crank sensors should only use OEM Mopar sensors. Aftermarket Advance Auto/Auto Zone/Pep Boys just don't seem to be as reliable as OEM. These should get your back up and running.

Keep a good eye on the oil and antifreeze levels and conditions-oil should just be oil, not looking like milk shake, and make sure no oil is floating in your overflow reservoir.

Chrysler recommends 7 years or 100,000 miles for replacment of timing belt/water pump.
Some folks have visually looked at belt and unfortunately assumed they showed no wear.

Being retired you should be eligible for use of base shop?? Years ago we could use base shop and NCOIC was usually a pretty well qualified mechanic tech and would guide you in procedures.

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Last edited by mnitetrain; 05-01-2012 at 06:50 AM.
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post #3 of 6 (permalink) Old 05-04-2012, 12:46 PM Thread Starter
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Thank you very much for your insight into my problems! It did take me a bit, but took your advice and tried to do the "dance" and check codes (which I didn't know possible before this). My codes were P0441 (Evaporative Emission Control System Incorrect purge flow) and P0513, related to a wrong key programmed security code.

Guess what? That solved it! I've got an old wooden box from my passed Granny that I keep my particulars in, including keys. Apparently, I picked up my spare set, with assorted extra keys, instead of the fob I use with house keys etc. Had also forgotten to mention in my troubleshooting that the dash security red light had also been blinking when turning the ignition key ("a clue, a clue, a clue"..." gesundheit!"). The computer refused to acknowledge that computer key, thus it killed the ignition every re-try.
Have consolidated all needed keys onto the right fob, and tucked the others in a drawer. THANK YOU for the advice about the codes, as I would not have thought to ever check that. It saved me no doubt from calling a mobile troubleshooter, huge labor cost, and then kicking my own behind around the block for not being a better diagnostic. Am grateful, and in your debt.
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post #4 of 6 (permalink) Old 05-04-2012, 12:50 PM Thread Starter
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PS: Still wondering if I should seek out changing that PVC, or maybe even the battery, as they're original from 75K miles ago, and I'm about to turn up 100K this week or next. Thanks again!

Russ
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post #5 of 6 (permalink) Old 05-04-2012, 12:51 PM
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never hurts to change out the PCV, only a couple bucks.
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post #6 of 6 (permalink) Old 05-04-2012, 09:13 PM
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Quote:
Originally Posted by Sooner4323 View Post
Thank you very much for your insight into my problems! It did take me a bit, but took your advice and tried to do the "dance" and check codes (which I didn't know possible before this). My codes were P0441 (Evaporative Emission Control System Incorrect purge flow) and P0513, related to a wrong key programmed security code.

Guess what? That solved it! I've got an old wooden box from my passed Granny that I keep my particulars in, including keys. Apparently, I picked up my spare set, with assorted extra keys, instead of the fob I use with house keys etc. Had also forgotten to mention in my troubleshooting that the dash security red light had also been blinking when turning the ignition key ("a clue, a clue, a clue"..." gesundheit!"). The computer refused to acknowledge that computer key, thus it killed the ignition every re-try.
Have consolidated all needed keys onto the right fob, and tucked the others in a drawer. THANK YOU for the advice about the codes, as I would not have thought to ever check that. It saved me no doubt from calling a mobile troubleshooter, huge labor cost, and then kicking my own behind around the block for not being a better diagnostic. Am grateful, and in your debt.
Sounds like another happy ending LOL!
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