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Camshaft sensor (again!)

 
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Old 18 Jun 2009, 08:23 am
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Default Camshaft sensor (again!)

Hi - I drive an '03 PT with about 98000 miles on it. Exactly one year ago this month we had the cam and crank sensors replaced after the check engine light popped on. Just in the last few weeks the engine light has come on and gone off 3 times giving me a code P0340 or P0344 each time. The light goes off after about 3 trips. I've noticed each time it's come on it's been a really hot day and I've been blasting the a/c in stop and go traffic. Anyone else had this problem? Should I have the sensors replaced again?

Thanks in advance!
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Old 18 Jun 2009, 08:37 am
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Default Re: Camshaft sensor (again!)

Did you buy the sensors at the dealer? If not, replace them again with OEM parts. They are more expensive but stops the MIL (Malfunction Indicator Light).

Another thing, your at 98K, have you had the timing belt replaced. If not, forget about buying new sensors, your timing belt is slipping and it's advisable to get it right to your mechanic or dealer and have the timing belt changed before it snaps.

Last edited by CREWZIN; 18 Jun 2009 at 08:40 am.
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Old 18 Jun 2009, 08:50 am
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Default Re: Camshaft sensor (again!)

Thanks for the speedy reply - I took the car to my local mechanic so I don't know if they are OEM parts or not. I guess we will just have to take it in. We were hoping to avoid an expensive repair as my job is in jeopardy right now. Do you know (ballpark) what I can expect to pay for a new timing belt?
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Old 18 Jun 2009, 08:54 am
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Default Re: Camshaft sensor (again!)

Quote:
Originally Posted by ABrown View Post
. Do you know (ballpark) what I can expect to pay for a new timing belt?
From what I've read on these forums there is no cheap fix for the timing belt... $800-$1200 seems to be the average due to the labor involved.

Thankfully, I won't have to experience that for a while... *knocks on wood*

While you are getting that fixed it's a good idea to get the water pump and some of the other belts replaced as well... to quote CREWZIN " It's about 5-7 hours of labor plus you should also change the water pump, tensioner, drive belt and alternator belt as they are all in the same area and all probably have the same mileage. We're talking here somewhere in the range of $800 to $1200 depending who you get to fix it and the price of the parts."
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Last edited by Travis2k7; 18 Jun 2009 at 08:58 am.
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Old 18 Jun 2009, 08:54 am
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Default Re: Camshaft sensor (again!)

Quote:
Originally Posted by ABrown View Post
Thanks for the speedy reply - I took the car to my local mechanic so I don't know if they are OEM parts or not. I guess we will just have to take it in. We were hoping to avoid an expensive repair as my job is in jeopardy right now. Do you know (ballpark) what I can expect to pay for a new timing belt?
$1250 was mine with belts, tensioner, idler pulley and water pump installed. 8 hour-ish job for the poor sap that has to the do the job.
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Old 18 Jun 2009, 09:23 am
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Default Re: Camshaft sensor (again!)

Mine was $900 but I bought the parts separately. The reason I suggested that it probably is the timing belt slipping is because your getting both camshaft and crankshaft MIL lights and very, very rarely would both sensors go bad at the same time. When the timing belt breaks or just before it breaks and starts to slip, different sensors around the engine start to see a fault because the timing is not right, example both your different MIL lights. That plus your right at the mileage where it's supposed to be changed before bad things could happen if the belt breaks while your driving. Valves can hit each other and cause internal damage. $$$$$$

Sorry, don't mean to scare you, it's just the way it is. Because money is tight, the cheapest thing you can do is just replace the timing belt itself. Still need the 5-7 hours of labor to get at it, and you'll have to put out that same 5-7 hours again to change the water pump (if that should fail) but it's the cheapest thing you can do right now.

Since nobody (including me) is positively sure, have a mechanic take off the timing belt cover and look at the belt to see any signs of wear, but sorry, that doesn't always prove to be 100% proof that the belt is about to fail.

Anyone else with a suggestion ?
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Old 18 Jun 2009, 11:17 am
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Default Re: Camshaft sensor (again!)

Aye, do the timing belt, stay away from payday loans.

That is all.
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Old 18 Jun 2009, 12:17 pm
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Default Re: Camshaft sensor (again!)

Thanks for all you help, just made an appointment with our mechanic for Tuesday. I'll probably drive our other car until then. They quoted me $600-$625 for the belt/waterpump which doesn't sound too bad (we live in Louisville, KY). Fortunately we have savings to cover these things, just didn't want to have to dip into it just now!
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Old 18 Jun 2009, 12:20 pm
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Default Re: Camshaft sensor (again!)

That's an excellent price .
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Old 18 Jun 2009, 12:26 pm
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Default Re: Camshaft sensor (again!)

Good deal. Do you know if he's ever done a timing belt on a PT before? It's a little tricky and the reason a I paid the dealer price because he had done many belts. Getting everything lined up properly after fitting the new belt is the tricky part and a few owners had to take the car back when it idled roughly when their job was done and it turned out to be a tooth or half a tooth off the mark.

When yours is done, start it up and make sure it idles smoothly.
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