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2004 Chrysler Sebring Camshaft sensor, engine hot
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thelung
New User
Jun 13, 2010, 5:40 PM
Post #1 of 4
(4310 views)
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2004 Chrysler Sebring Camshaft sensor, engine hot
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Hi, thanks to everybody for your time and attention!!! I appreciate it; even if you didn't reply!!
Anyways, here's my car: I have a 2004 Chrysler Sebring, non-convertible, 4-banger, DOHC, auto trans..
A little more than a year or so; on a very hot day during a very long drive, the cam shaft sensor went out. A few months later the same thing happened. During the winter months, I had no problems with it. Now, it's warming up again, my sensor has recently quit on me again. So I replaced it, and halfway through my drive from IN to SC last week (hot, hot, hot drive), It went out on me again. So I stop and replace it. Then a few miles down the road, it continues to act up. I've noticed that when this occurs, my engine is verrry hot!! So hot it burns my fingers to touch the support arm for my hood. And When I'm driving now, it will behave just fine if I keep my air conditioner off and keep my rpm's below 3,000rpm. I actually drove from SC to IN today with an ate up drive shaft cam sensor without any problems, but like I said, I keep my AC off and my engine below 3,000rpm the whole time, and when making potty stops, I'd open up my engine to the breeze to let it cool down. All of my dash gauges read fine, including engine temp. Engine coolant fluid is above min level, but is kinda rusty lookin', I just took the car to the dealership a couple weeks ago, but they didn't understand that I wanted to find out what was causing the problem, instead of just buying more camshaft sensors. And they passed the car during their 20something point inspection, so i'm assuming the coolant fluid is okay. I'd like to know if any of you car guys would have some insight into what is going on with my car??? what's causing my camshaft sensors to go out? And wny does my car flip out when It gets hot and I drive over 3,000-3,500 rpms when it is behaving poorly???
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Sidom
Veteran
/ Moderator
Jun 13, 2010, 7:05 PM
Post #2 of 4
(4298 views)
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Re: 2004 Chrysler Sebring Camshaft sensor, engine hot
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Chrys have a problem with the cmp sensors. I'm not sure what you meant by the statement "ate up sensor". With these failures, it's nothing you can see with your eye. It sounds like you are using OE sensors so you may try a quality AM brand to see if it makes a difference.
The ref voltage, signal wire and ground should be checked but it seems if there was any resistance problems it would show up as a drivability problem but then again I'm not sure of the exact failure you're getting here....
Those engines do run hot. You can't go by the hood support burning your arm, (thats actually normal, that little rubber piece on the support is there for more than just cushion) You need to moniter both temp sensors and as long as both are in the 220° range then heat isn't a problem.
That car uses dex cool so it's orange in color but like any coolant needs to be changed at regular intervals, you can't (or shouldn't) go by what it looks like. If you wait until it looks bad, you've waited way too long.....
A little more info on the failure would help. What codes you are getting. What the car is exactly doing.....or not doing
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thelung
New User
Jun 13, 2010, 7:23 PM
Post #3 of 4
(4297 views)
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Re: 2004 Chrysler Sebring Camshaft sensor, engine hot
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Hey, thanks a lot for replying Sidom!!!
I've used both generic and mopar, from the dealer, sensors as replacements.
The failure that I'm getting could be described almost like a transmission issue. If i've been driving for a little while or it's extremely hot outside; when my car downshifts to rev up (like when passing someone or going up a steep grade) it will stop in the lower gear, with elevated rpm's, and you can hear the engine really runnin' hard, but there is no acceleration in speed, in fact, if i'm going uphill, I may even come close to stop, unless I let off the gas and go slowly, keeping my rpm's less than 3,000rpm. Ultimately, When my car is behaving like this, if I were to be stopped, and mash in my gas, I would go nowhere. But if I keep my rpm's less than 3,000 I can get in excess of 75mph without problems...
my statement "ate up sensor" just implied that the sensor in place had showed compromised function, or it's screwed up since i've installed it..
thanks for the info on the dex cool, that's good to know, that may have saved me a big hassle tomorrow messing with my coolant..
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Sidom
Veteran
/ Moderator
Jun 13, 2010, 7:44 PM
Post #4 of 4
(4289 views)
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Re: 2004 Chrysler Sebring Camshaft sensor, engine hot
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That sounds like a typical cmp sensor pattern failure....
At this point I don't have a good answer for you. I would probably be looking at the ckp (crank sensor) as well, they do share the same ground and I'm remembering something on the older ones with 8v reference voltage where the cmp would short, pulled down the ckp ref & make it look like a bad ckp.
This would be the opposite which I haven't heard of but even thought these sensor are a problem with Chrys, I haven't seen one with the problems at the rate you are getting.......Something else has to be going on taking out these sensors (yea, I know I'm telling you something you already know). I guess the next step would be to check the ckp and start doing some voltage drop testing. a scope pattern would be handy to check sync & see if both sensors patterns are pulling all the way down to 0 v or close to it. If not that would indicate excessive resistance on the ground side..........
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