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code P0645 No start

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  #1  
Old 03-09-2013, 11:47 AM
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Default code P0645 No start

I have a 2006 Town & Country that ran fine, never an issue except the turn signals would act crazy. I would turn on the left signal and the right would come on, or sometimes neither would work. This does not happen often, but it happens sometimes. Anyway, I stopped one morning and got some gas, as soon as I pulled out the van started cutting out. I had it towed to the mechanic where they all told me it was the starter. So, I had the starter replaced (3 times in less than a month- $400 each time). Then the battery was replaced along with the fuel pump.
The whole time the van started and ran one time for about 45 minutes and hasn't run since. The code P0645 keeps showing up, I did research and everyone is saying the A/C clutch relay. I just need to find out what is going on because no mechanic is figuring it out, but they are sure charging me a lot of money to have me replacing parts.
 
  #2  
Old 03-09-2013, 02:52 PM
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fist why did u pay for a starter each time? one time yes and the there warranty would cover it if it was defective. as for whats wrong sounds like an electrical issue that non of your guys are trained to look at.
 
  #3  
Old 03-09-2013, 09:21 PM
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The starter has nothing to do with an engine cutting out. Are you telling us everything the mechanic had to say? If they are indeed changing a starter for your engine cut out, you must be in a third world country.

If the engine was consistently stalling after refueling I would suspect the ORVR valve in the fuel tank is staying open allowing fuel into the EVAP canister and flooding the engine.

I'd say the P0645 is incidental to your stalling problem.
 
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Old 03-10-2013, 05:36 AM
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After the third time of a third mechanic telling me it was the starter, I had it towed back home. After I put fuel in it the first time it stalled, it wouldn't start until the first mechanic put the second starter on (my BIL put the first one on), so then I drove it home. The next day I went out to go to school and it wouldn't start, again. I had it towed back to the mechanics, and he told me it was the starter again. I had the third starter put on (exchanged the previous starter, but I still had labor and tow- again). I drove it to school the next day (it had already been in the shop for about a month total at this point). On my way home I made it out of the parking garage and it stalled within running for about fie minutes. It wouldn't start. I then had it towed to another shop. The mechanics there told me it was the starter. I said I am not paying for another new starter (not refurb), and i had it towed back home where it is still sitting. I have a new fuel pump, three new starters, battery, EGR valve, and now it won't start. After the fuel pump was installed it ran for about 10 minutes before it stalled.
When the key is on, but not starting the van, it is clicking from the box under the hood. I am at a loss because I never had any problems, and it never gave me any indication that anything was wrong. I have had new gas put in and the gas that was originally put in was drained just to make sure it wasn't bad gas. It is going on two months and no mechanic is able to pinpoint the problem. I am having it towed to yet another mechanic on Monday.
 
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Old 03-11-2013, 06:09 PM
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I was just informed the computer was out and I need to pay $2,000 to have a new one installed and programmed. So I guess the code P0645 is saying that my computer went out.
 
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Old 03-11-2013, 10:40 PM
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The Powertrain Control Module (PCM) can keep the air conditioner compressor clutch from turning on and give you a P0645 code. The PCM can also keep the engine from starting. But if you pay them $2000 to change a PCM they will be having one hell of a party after you leave. PCMs are readily available at both internet and parts store sources for around $300, preprogrammed and ready to install. A 10 year old could replace one in 20 minutes. $2000 is even high for a dealership.
 

Last edited by Raptor 07; 03-11-2013 at 10:43 PM.
  #7  
Old 03-11-2013, 10:40 PM
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ahhh no take it to a dealer and no a computer does not cost 2000 bucks Im sorry your getting hosed.
 
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Old 03-22-2013, 06:37 PM
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I have now had it to three more shops. One being the Chrysler dealer. Since it left the dealer, it no longer turns over. They supposedly replaced parts that were on a recall. They also told me they couldn't diagnose it without it running (which they knew it wasn't running when I had it towed in). So after many problems dealing with phony mechanics at that dealer (telling me it was the starter and flywheel), I had it towed to another shop. Prior to the Chrysler shop it was at an electrical specialist who could not figure out the issue either.

Now it just had another new starter (not refurb) and a new flywheel. It won't turn over to even try to start. At least before it went to Chrysler it tried to start. Anyway, the mechanics are running tests on the electrical system. From what I got so far, there is no ?(electrical) going to the engine, but there is going to the transmission. No one can figure this out- including the main dealer. Now what kind of stuff is this that no one can figure it out (6 repair shops later- one I had it sent to twice).
 
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Old 03-23-2013, 04:58 PM
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Hi, Just a we check here. This is not a wiring Gremlin you've got here is it. Because I would be surprised if it is, as the last times I've been under my 03 CRD Voyager I noticed several places where the wiring loom was rubbing at metal sections. Mines was ok, scraped and marked but if a little tighter on the loom it would be vibrated through and earthed.
Goggs.
 
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Old 03-24-2013, 06:34 AM
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Thank you for the reply goggs The electrical tech is testing and checking all that now It was just so weird because up until it died (well except the battery died about a month or so before it died), I never had any problems, no hesitation when starting or driving, no check engine lights or dashboard codes, no funny noises, nothing at all. Oh, actually the one thing is that sometimes (not very often) when I would turn my turn signals on it would act crazy. I would turn the left signal on and it either wouldn't come on at all, or the right signal would come on (and then the same for the right signal).
 


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