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Discussion Starter #1
Hi guys. At this point I'm so desperate I asked this to a certified mechanic online for money, I haven't gotten an answer yet so I'm going to post here as well.
I changed the engine in my 2004 intrepid from a 2.7 to a 300m 3.5. The engine won't rev past 2500. Diagnostics show a camshaft position sensor error but my electrician changed both camshaft & crankshaft sensors, he even changed the PCM and the same problem keeps happening. He keeps on saying that he checked the wiring multiple times and there's no issue there. Any help? Has anyone had a problem like this. The car has been sitting in the shop for 3 weeks now and I desperately need it to run flawless. I wish I was in the states where mechanics actually know what they're doing but I'm not, so I appreciate any help I get so I can tell the asshole what to do.
 

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Discussion Starter #3
"At this time you MUST find out what year the replacement engine is. IF it is in fact a 2000 model year engine that is why you are having this problem...

The Cam and Crank Sensor Tone Wheels (Left Cam Sprocket and Flex Plate) are different between the 2 years...This will lead to different cam and or crank sensor codes.

If it is a 2000 engine, you will need to swap out the left Camshaft Sprocket with one from a 2004 vehicle. Also, if you used the flex plate from the 2000 engine, it will need to be swapped out for the 2004 part also.

The reason for this is because Chrysler changed the way the cam and crank sensors operate and as a result the "Windows" are different on the tone wheels between the 2 years." This is what a certified Technician told me online. I searched cam sprocket on rockauto.com but couldn't find anything, any idea where I can get the part online ? I'll search every junkyard but doubt I'll find it because as I said I like in Europe and there are very few American cars here.
 

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98-01 used one style of tone ring and 02-04 used another. I don't know of any sites for sure yet where you can find one but at least these year ranges may help a little bit to broaden which model years of vehicles you can look for
 

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Are they the same for both 300m and intrepid?
they are.
I assumed the tone rings were correct.
through-01 has type I, 02-04 has type II (applies to all 'treps, 'cordes, 300's and LHS's w/any engine)

I have an extra tone ring for the cam for both pre-01 and 02-04 if you need.
if you flexplate is wrong that's going to be exciting to change.
 

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So, it sounds like it has the correct flex plate (otherwise it wouldn't run at all), but the wrong camshaft sprocket (hence rev. limits at 2500).
 

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Discussion Starter #9
they are.
I assumed the tone rings were correct.
through-01 has type I, 02-04 has type II (applies to all 'treps, 'cordes, 300's and LHS's w/any engine)

I have an extra tone ring for the cam for both pre-01 and 02-04 if you need.
if you flexplate is wrong that's going to be exciting to change.
Thanks a lot man I really appreciate your gesture, where do you live? States? Europe? Iceland maybe? :))
 

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Discussion Starter #12
I have the Cam sprocket you need. If interested PM me.
Thanks for the help everyone but I wouldn't burden you dudes with the shipping of the part and ****. I was able to buy the part online and I should have it in two weeks time. If for some reason I don't get the part or something, then I will ask someone for help as I'll have no other choice.
 

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Thanks for the help everyone but I wouldn't burden you dudes with the shipping of the part and ****. I was able to buy the part online and I should have it in two weeks time. If for some reason I don't get the part or something, then I will ask someone for help as I'll have no other choice.
its just collecting dust for us, we enjoy parts getting used.

either way I hope you luck with the new tone-ring, and your ride gets going
 

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Discussion Starter #14
The sprocket finally arrived yesterday and halleluiah! The engine works fine. However when we test drove it today there was an issue with the transmission, when the dude did diagnostics it said that the oil temperature in the transmission was -19, which is obviously bullshit, causing it to operate in emergency mode hence the car not really doing much when throttle applied. I called another electric and he said it is most probably a PCM issue. What do you guys think? man I wish I'd known how ****ing dumb local mechanics were, I'd never have bought a rare car (for Europe) like this in the first place.
 

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...when we test drove it today there was an issue with the transmission, when the dude did diagnostics it said that the oil temperature in the transmission was -19, which is obviously bullshit, causing it to operate in emergency mode hence the car not really doing much when throttle applied. I called another electric and he said it is most probably a PCM issue...
The tranny temperature sensor is in the TRS (Tranny Range Sensor - inside the transmission, but has external connector for PCM harness). With a little luck, maybe there's a wiring problem between it and the PCM - broken wire, or maybe a poor/corroded connection at the TRS or PCM. I'd say that's more likely than bad sensor in the TRS or bad PCM.

Check that the connectors are fully mated. People have been messing with the wiring, so maybe one connector was not put back completely. There's a connector C107 in the middle of that wiring harness that includes those temperature sensor wires. There are two similar-looking in-line rectangular connectors beside the brake booster. Those connectors are known for causing problems - often caused by corrosion - might just needed to be separated and re-mated. I do believe that C107 is one of those 2 connectors.

You might also disconnect the vehicle ground at the negative jump post for 15 minutes to reset all the computers, and then reconnect. It's a long shot, but sometimes strange problems are fixed by a "system reboot".

You could troubleshoot the wires and connectors using Section 8W in the FSM (any year '02 to '04 would work for this for your car), but the wires between the PCM and TRS for this are violet/pink and dark blue/black - pins 3 and 4 on TRS, and C4 pins 34 and 35 on PCM (schematics and connector pinout diagrams are in FSM section 8W).
 

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Discussion Starter #16
Thanks a lot for the detailed info man, it is very much appreciated, I'll tell everything you said to the electric and will post the result tomorrow.
 
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