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Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

 
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Old 19 Dec 2016, 03:09 pm
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Default Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

Hello... any thoughts or suggestions on this would be much appreciated. So, last year about this time, I went out to start my 07 pt one pretty cold morning (mid 20's I'd say). After a little bit of a rough time starting, it did start up, but the check engine light came on. It ran fine after this. I took it to get the code, which was a cylinder 3 misfire. Here's the "curve ball" of sorts: at the same time, filling the car with gas became difficult, in that the gas pump would shut off every couple seconds - in other words, it took maybe close to 10 minutes to fill the tank. Solution? Took it in to be checked out, had a tune up done, replaced spark plugs, and not only did that get done, the check engine light of course went off, but the gas pump issue went away immediately after the work. Fast forward to a couple days ago: the same thing happened again. Cold temps, rough start, check engine light on, although so far intermittently, and the gas pumping issue is back. I assume I'll have to take it back for the same? or similar work? but wondering how the two things (misfire/spark plugs issue) could be related to the gas pumping issue. Any thoughts??
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Old 19 Dec 2016, 03:45 pm
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Location: Amboy, Indiana
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Wink Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

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Originally Posted by InfamousCruiser View Post
Hello... any thoughts or suggestions on this would be much appreciated. So, last year about this time, I went out to start my 07 pt one pretty cold morning (mid 20's I'd say). After a little bit of a rough time starting, it did start up, but the check engine light came on. It ran fine after this. I took it to get the code, which was a cylinder 3 misfire. Here's the "curve ball" of sorts: at the same time, filling the car with gas became difficult, in that the gas pump would shut off every couple seconds - in other words, it took maybe close to 10 minutes to fill the tank. Solution? Took it in to be checked out, had a tune up done, replaced spark plugs, and not only did that get done, the check engine light of course went off, but the gas pump issue went away immediately after the work. Fast forward to a couple days ago: the same thing happened again. Cold temps, rough start, check engine light on, although so far intermittently, and the gas pumping issue is back. I assume I'll have to take it back for the same? or similar work? but wondering how the two things (misfire/spark plugs issue) could be related to the gas pumping issue. Any thoughts??
Sorry to hear of your deja vu episode. I think it would be a good starting point to have the codes scanned again with an obd 2 code reader or the cycling of the key on to off three times will allow you to view stored codes in the odometer display area but a code reader is the preferred method. The gas pump kicking off sounds like you may have an evap system issue where your fuel tank is not venting correctly, should also show up on the code reader if that is the case. After you retrieve the codes then work off of those results. Post your scan results and someone will be glad to assist you.
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Old 19 Dec 2016, 03:55 pm
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Join Date: Aug 2014
Location: Thousand Oaks, CA
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Default Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

What engine trouble codes are you getting?

When you fill up your gas tank do you top it off?

Do you take the PT Cruiser to the same gas station or different gas stations?
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Old 19 Dec 2016, 04:53 pm
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Default Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

Imakenocents: I will definitely have the codes scanned again, it's such a eerie similar situation to last winter that I assumed (possibly incorrectly, I know) that it would show the same code as last time. I took it to both an advance and an oreillys last year and got the same info from both. I actually didn't know you could cycle the key and get codes, so i'll try that as well. Thanks for the help so far.....

ptcruisersteve: the car usually goes to the same gas station as there is one within walking distance of the house, a shell. I don't top off the car as I've read that that's not a good thing, although my wife does use the car occasionally and I honestly don't know if she does or doesn't. Again, I'll post codes once I get them.

Here's a question though... I have read that that p0303 code may refer an evap system problem as well as a spark plug issue. Imakenocents mentioned that the gas pumping issue may be related to an evap system issue above (which I did read about last year). Is it possible that if the code is indeed the same as last year, and since the gas pump issue has returned, that the rough, cold start somehow caused some 'trip' of an error in that system, and if that's possible, why would it do such a thing? Needless to say, after we got the car back last year after the tune up, we were shocked that the gas pump issue had ceased. We were told by the mechanic that it was something he tried to address but couldn't find the issue to. He simply did the tune up, the check engine light was gone, and all of a sudden, the fuel pump issue was gone as well.
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Old 19 Dec 2016, 09:26 pm
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Default Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

It's definitely a evap problem I'm leaning towards the canister due to its filled with a material that holds water when the temp drops it freezes so no vapors can pass threw. When it was in the shop it warmed up and thawed out. If you can lift car up pull tube that goes between the canister and vent shut valve and stick a screw driver in the hole or use a flash light, to see if there is ice inside if it happens again. Go home put a blow drier to it 5hen go back and try to 0ut gas in it and you will see imedetily a difference. Happy cruising.
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Old 20 Dec 2016, 04:53 am
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Default Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

Here's a new development too...

The check engine light, after being mostly on (somewhat intermittent,but mostly on) for a few days, now has been off for a solid day - yesterday - reported by my wife, and I went out to see so on a couple of quick drives last night. But I also went to put some gas in it last night, as it seems to be going through some gas more quickly than usual, and had the same issue with the gas pump stopping over and over. Ugh. I think this just got harder to diagnose. Also, I'm guessing I can't "get codes" if there's no check engine light on?
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Old 20 Dec 2016, 09:49 am
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Wink Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

Quote:
Originally Posted by InfamousCruiser View Post
Here's a new development too...

The check engine light, after being mostly on (somewhat intermittent,but mostly on) for a few days, now has been off for a solid day - yesterday - reported by my wife, and I went out to see so on a couple of quick drives last night. But I also went to put some gas in it last night, as it seems to be going through some gas more quickly than usual, and had the same issue with the gas pump stopping over and over. Ugh. I think this just got harder to diagnose. Also, I'm guessing I can't "get codes" if there's no check engine light on?
Sir, I would have the codes read with a code reader, at best, without that information it is shear guesswork. It does appear from your symptom when refueling that you have an evap system problem but the stored codes need to be read. The increase in fuel consumption could be multiple things but you have already mentioned a P0303, #3 cylinder misfire, which that alone would affect fuel mileage. You need a good starting point and having the codes read would be that point. Hard faults will store whether the CEL is on or not and must be cleared with the scan device. Have you tried the key on to off 3 times just to see if anything displays in the odometer display area. Don't cycle the key from on to start position, just on to off, 3 times. I think most parts stores will read your codes for no charge.
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Old 20 Dec 2016, 10:28 am
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Default Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

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Originally Posted by revo View Post
It's definitely a evap problem I'm leaning towards the canister due to its filled with a material that holds water when the temp drops it freezes so no vapors can pass threw. When it was in the shop it warmed up and thawed out. If you can lift car up pull tube that goes between the canister and vent shut valve and stick a screw driver in the hole or use a flash light, to see if there is ice inside if it happens again. Go home put a blow drier to it 5hen go back and try to 0ut gas in it and you will see imedetily a difference. Happy cruising.
I am suggesting that the canister might be filling up with fuel with the restriction of trying to get fuel into the gas tank and its backing up into the evap system filling up the canister with fuel. Make sure you don't have a restriction in the hose going to the gas tank and check the hose. Do you keep a locked gas cap on the PT Cruiser?
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Old 20 Dec 2016, 10:42 am
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Default Re: Help..Odd issue/Check Engine Light/Misfire/Gas Pumping

Ok.. for some new on board..or old timers

The key acquisition is NOT a good source for finding engine trouble codes. In fact it is not even advised in the Factory Service Manual to use. Mainly because they are not user friendly if there are multiple engine trouble codes.

If you own a vehicle manufactured from 1995 and newer and plan to be a DIY on it then you are advised to invest in a Diagnostic Scanning Tool. The better ones will have Readiness area viewing and resetting capabilities. But at least one that connects and read directly to the Diagnostic connector is preferable.

DO NOT disconnect the battery to clear engine codes. While this method may work with some very old ECU in the early 1990's it is not effective with new ECU,TCM,PCM. etc., to clear the trouble codes and may hinder accurate information to diagnosis a computer monitored issue.

When having anyone access the diagnostic connector to retrieve trouble codes the proper procedure is to note any and all engine codes, clear them and than test drive to check for any engine trouble codes that may reactivate and compare the notes.
You may need to do this a couple times for better accuracy.

The readiness area is also a good place to reset but many times will take several drive cycles to go into a state of Readiness for all emission testing. This area may be better used for advanced or experienced trouble shooters?

Using the engine trouble codes can make the job of correcting a problem very quick if they are accessed and used as designed.

I do not recommend the random replacing of any parts until you have effectively verified that they are failed. I recommend that if you suspect any electrical part as being faulty to first remove it clean it thoroughly as will the connector reinstall it and then follow the engine code check and retest procedure.
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Last edited by NitroPT; 20 Dec 2016 at 10:49 am.
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