Does anyone know a way to get the timing to match up if you put a 2006 2.7L in a 2004 Sebring convertible GTC?

20

Asked by Twindragon Feb 26, 2015 at 11:53 AM about the 2004 Chrysler Sebring GTC Convertible FWD

Question type: Maintenance & Repair

The car won't start with cam shaft sensor connected but will start and go into limbo
when it's not connected. I know the 2006 2.7L motor has some differences but
theoretically you should be able to get this car to be compatible. The timing is off as it
is having an issue communicating with the computer but can you change the heads
from the 04 motor or something that will get around this issue and get it to where the
06 motor will run in the 2004 Sebring convertible gtc?

34 Answers

20

I believe there is different tumber systems with the cam shaft sensor and the crank shaft sensor on the 04 than 06. I am trying to work around the situatio an do whatever needs to be done to get this 06 motor to work in my 04 and have the car running in great condition. The 06 motor is strong with low mileage and if I can get it to run it will be much better than the motor that was in it before was.

20

Iv'e been told the pcm will be to incompatible with everything else and it would cause a larger headache than I have now.

20

The heads are good on the 04, I'm wondering if I swap the heads off the 04 with the 06 thats in it now if that would get around the timing problem since it's really just all about communication with the computer.

1,205

The only advise I can give you is pull one head off at a time on each engine. look at everything that is different. I looked up both sebring vehicles heads the part #'s are different. but looking at the pictures they don't look much different. if you take them off you can see them in person and see every difference.

1,205

It would be real good for you if all you had to do is change the cams. that would be a little easier.

20

They have already confirmed changing the cams doesn't make it work. it still has the timing issue going on with the motor communicating with the computer and never starts unless you unplug the cam shaft sensor. It's firing sequence is all different. you can plug the cam shaft sensor in after it starts and it continues to run but not correctly regardless. Starting to feel theirs not a lot of hope! But I just can't see why there wouldn't be a way to make this motor compatible with the rest of the car and get it up and running correctly. I mean really even with it's differences it basically the same motor at the end of the day. I need to find a way to get this car running correctly for under a grand as now I am already out 3K I can't get back.

20

When opening up the motor the mechanic is telling me there is just to much different to be changed out to make it happen at this point now that I have paid him all this money and still don't have it running. He was trying to see if the chain could be swapped out with the one from the 04 but than when he took a look he says it's much more that's different than just that.

1,205

the only way changing the whole head would make a difference is if the valves are different sizes. to me it sounds like its the sprocket that the cam sensor works off of is different.

1,205

I wish I could see the vehicle in person. I should work if the sprockets are the same size. and the pin on the cam fits the sprocket.

1,205

I'm not sure if the engines are timed different. but they need to be timed like it is an 04 engine.

20

I'm positive they are timed different. That is the problem just not sure what is the best way to get the motors time to be the same as the 04. The flywheel was different and we used the flywheel from the 04 but that is all that has been changed over to the 06 motor from the 04. When the car is running I can't go over 2,700 RPMs without the car freaking out because of the timing confusion that must be going on with the computer from the motor.

1,205

ok it sounds like you changed the flywheel because of the teeth that the crankshaft sensor works off of. now somehow you have to change the cams sprocket that the cam sensor works on. that way the cam and crank sensor works in sync with each other. because right now your crank is running 04 timing and your cams is running 06 timing.

20

I'm gonna have to say you are more than likely right. That being said the only reason the flyweel had to be changed out from the 06 one to the 04 one was because it wouldn't fit with the starter from the 04 so maybe getting the 06 starter would have been the better route and stopped me from being in this mess. Motors already in there now though!!

1,205

The heads are the same part #'s minus the camshafts. Which means you don't have to change the heads. the camshafts from the 04 will fit the 06. the timing chains have the same part #'s so they are the same length. the crank timing gears are the same. so what i would is change all the camshafts and sprockets the get a timing chain set for an 04 engine minus the sprockets. or take it off the 04 engine i know they say it is too much to change but it's not really that much there. also if it gets your car going its worth it. if it were me i would get it all off the 04 and put it on the 06.

1,205

sorry i told you wrong the cams are the same also.you don't have to change them. just get a timing chain set for an 04 engine. or take it all out of the 04 engine.

20

I agree with everything you are saying and I am really starting to think the mechanic is a moron. I think the fact that he changed the flywheel caused all this knocking the time off between the crank and the cams.

1,205

I'm sorry you are having all the trouble your having. Your mechanic should have done the research before he started swapping the engines over. Is he going to put an 04 timing kit on it.

20

I'm not absolutely sure who I am going to have the work done with just yet. Honestly a little to afraid to have him do anymore work on it. It's still in his shop because there is major snapping and popping coming from the passenger side wheel when we tried to test drive it. An issue I can't even get him to address. All I know is it wasn't doing it before and now that he's done the motor swap it is. He literally avoids it when I bring it up.

20

I will get it figured out and I will let you know what we run across along the way. Hopefully the information you have provided me with will help me get this worked out. I will let you know if getting the timing set to the 04 makes it work.

20

Unfortunately not yet, However there is a mechanic that is about to change the flywheel back to the 06 flywheel, but he says we have to change out the torch converter to make it all work as there is another one for this model that will make it all fit correctly. The previous mechanic didn't press the motor and transmission together right and get a new seal put on there and tried to cover his tracks with some kind of silicon but left me with a main seal leak so that has to be dealt with now to. The transmission has to come out this weekend hopefully if the mechanic is able to get started this weekend. Sure hope this all works. Honestly other than if I were to try and take out as long as I stay under 2.700 rpms and if it weren't for the fact that there's a main seal leak causing me to lose oil the car runs strong with the new motor, of course can't have the cam shaft sensor connected to get it to fire up and it still doesn't fire up right away, takes about 5-7 seconds to start.

1 people found this helpful.

hiii can u tell me what happened since am.doing that now i get 2.7 l 2008 for my 2.7 sebring 2004

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