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Good evening!

To start with, my wife has a 2017 challenger R/T with around 70k miles. It is her daily driver and has been a great car. In the past few months, we have noticed that when we get gas it will sometimes not start without cranking a few times. Here recently it has gotten worse and will crank usually 2 times before starting and running fine. We do have a gas cap cel on and have one on order but I did not think that this would cause the issue. The car runs and drives fine otherwise. The last time the car did this, I could smell gasoline fairly strong from the exhaust which leads me to believe it was getting too much fuel and flooded a little. Any advice would be helpful.

Thanks!
 

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The Bacon Hauler (‘12 Cop Charger)
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Lots of possibilities. Most of them would give a DTC indicating their pending failure or failed state. A few wont give any clues they are wearing out and affecting operation. Without more data, you could be in for a long process of narrowing down possible culprits to an actual cause.

Here’s a possibly related anecdote: i developed a hard start after some tune-up services were performed, which seemed counterintuitive since related components were all new. Turns out it was the Crankshaft Position Sensor. It hadn’t failed, and the car still ran fine for a long time. It was just hard starting sometimes.

Replacing the CCK sensor while doing the O2 sensors later fixed it though. (Camshaft Position Sensor had already been replaced.)
 

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2015 RT 5.7 M6
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Could also be a leaky injector? A check of fuel pressure after shutdown could help spot that. Although you mention the car is difficult to start after getting gas, wonder if that has something to do with the EVAP system...liquid fuel getting in or past the canister or stuck open purge valve? If the purge valve is stuck open, a lot of the fumes generated during fillup can be making their way to the intake and cause a fuel flooding situation. There is a recall going around (not sure of the model years impacted) for the EVAP canister BTW.

You can enter your vin here to check, although FCA seems to be having trouble with their links.
 

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The Bacon Hauler (‘12 Cop Charger)
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Could also be a leaky injector? A check of fuel pressure after shutdown could help spot that. Although you mention the car is difficult to start after getting gas, wonder if that has something to do with the EVAP system...liquid fuel getting in or past the canister or stuck open purge valve? If the purge valve is stuck open, a lot of the fumes generated during fillup can be making their way to the intake and cause a fuel flooding situation. There is a recall going around (not sure of the model years impacted) for the EVAP canister BTW.

You can enter your vin here to check, although FCA seems to be having trouble with their links.
that evap recall only covers older models, 2010 and below IIRC
 

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2015 RT 5.7 M6
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that evap recall only covers older models, 2010 and below IIRC
Nope, my 2015 has an open recall for EVAP. Just saw it in "my garage" when I connected to Mopar connect.
979240


Although it only seems to be for the 2014-2016 models.
979241


For <$30 I might as well buy the canister and install it myself...don't want dealer mechs/techs touching my car.
 

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Good evening!

To start with, my wife has a 2017 challenger R/T with around 70k miles. It is her daily driver and has been a great car. In the past few months, we have noticed that when we get gas it will sometimes not start without cranking a few times. Here recently it has gotten worse and will crank usually 2 times before starting and running fine. We do have a gas cap cel on and have one on order but I did not think that this would cause the issue. The car runs and drives fine otherwise. The last time the car did this, I could smell gasoline fairly strong from the exhaust which leads me to believe it was getting too much fuel and flooded a little. Any advice would be helpful.

Thanks!
Hi ROARKY,

We certainly understand why this would be concerning! If you decide to address this with your local Dodge dealer, please let us know via private message. We would be more than happy to have this formally documented and connect you with a case specialist for an additional layer of assistance as you work with your dealer.

Mark
DodgeCares
 

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The Bacon Hauler (‘12 Cop Charger)
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Nope, my 2015 has an open recall for EVAP. Just saw it in "my garage" when I connected to Mopar connect.

...
Damnit, I thought for sure I wasnt misremembering that one, but apparently I was...well hell, this pretty much settles it - my cognitive impairment has progressed much quicker and further down than I realized. My decent into madness is pretty much complete, and all that’s left is to wait for the crazy to take over. ?

It‘s been a blast gentlemen! See y’all* on the other side!!

Nuke, Over and OUT!


* - well some of y’all anyway...there will a few of you that won’t be allowed in, for all the obvious reasons...but what can I say, thems the rules @A Guy!
 
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2020 Dodge Challenger Hellraisin Scat Pack
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Good evening!

To start with, my wife has a 2017 challenger R/T with around 70k miles. It is her daily driver and has been a great car. In the past few months, we have noticed that when we get gas it will sometimes not start without cranking a few times. Here recently it has gotten worse and will crank usually 2 times before starting and running fine. We do have a gas cap cel on and have one on order but I did not think that this would cause the issue. The car runs and drives fine otherwise. The last time the car did this, I could smell gasoline fairly strong from the exhaust which leads me to believe it was getting too much fuel and flooded a little. Any advice would be helpful.

Thanks!
Not too much fuel. Too little fuel. Reads like an intermittent fuel pump issue. The odor of gas is probably related to the CEL and its error code. There is a fuel vapor leak which is a second problem.
 

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2015 RT 5.7 M6
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Damnit, I thought for sure I wasnt misremembering that one, but apparently I was...well hell, this pretty much settles it - my cognitive impairment has progressed much quicker and further down than I realized. My decent into madness is pretty much complete, and all that’s left is to wait for the crazy to take over. ?

It‘s been a blast gentlemen! See y’all* on the other side!!

Nuke, Over and OUT!


* - well some of y’all anyway...there will a few of you that won’t be allowed in, for all the obvious reasons...but what can I say, thems the rules @A Guy!
Could be there was a recall for earlier years, I only know of the recent recall.

BTW don't worry if you don't have total recall of the recall...it will drive you mad!
979243
 

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2015 RT 5.7 M6
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Good evening!

To start with, my wife has a 2017 challenger R/T with around 70k miles. It is her daily driver and has been a great car. In the past few months, we have noticed that when we get gas it will sometimes not start without cranking a few times. Here recently it has gotten worse and will crank usually 2 times before starting and running fine. We do have a gas cap cel on and have one on order but I did not think that this would cause the issue. The car runs and drives fine otherwise. The last time the car did this, I could smell gasoline fairly strong from the exhaust which leads me to believe it was getting too much fuel and flooded a little. Any advice would be helpful.

Thanks!
BTW the intake manifold bolts seem to loosen on these engines. Always a good idea to check them.

Oh and welcome to the forum!
 

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Do you and your wife happen to top off the tank when the pump clicks off initially? I ask because years ago I had a 2007 Grand Cherokee that I purchased new that I shot myself in the foot with due to an old bad habit of topping off the tank to make sure it was "full."

After about 3 years of this practice I began having hard starts after filling up at first and ultimately it turned into randomly shutting off within a mile of going down road, sometimes as we pulled out of the gas station while broadside to traffic, ultimately due to a vapor lock in the system. Needless to say, once we found the problem after 6+ solid months of Chrysler trying to identify the problem under warranty work... I never topped off a tank again.

Good luck.
 

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Discussion Starter #12
Sorry it took so long. We replaced the gas cap with a mopar part. Noticed it was a little different than the stock cap. We have not had any issue since.
 

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2020 Dodge Challenger Hellraisin Scat Pack
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Sorry it took so long. We replaced the gas cap with a mopar part. Noticed it was a little different than the stock cap. We have not had any issue since.
That's some sensitivity to the gas cap.

The other day went to fill up my Hellcat at a nearby Quik Stop gas station but the card reader system was down. Had to go inside. Found a line of customers with the slowest clerk on the planet waiting on them... No way I wanted to wait. So I left. Drove several miles to check out a new Speedway station downtown. Its prices were way high so I then drive to the other side of town to a Rotten Robbie.

At the RR station as I went to open the gas lid I noticed the cap hanging out. Apparently when pulled into the Quik Stop as is my habit I opened the lid and removed the cap and hung it by its tether to the lid. But when I came back out I forgot about the cap and just closed the lid. Or maybe didn't even close the lid the air blast on the freeway closed it.

At any rate I note the engine started just fine, ran fine, and did not even see the CEL light up.
 

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Usally the evap purge failed. The last shop I worked at was a very busy one. Had a few cars pushed over as no starts. The fuel gets past the valve and gets into the intake. Loads up the car. That’s why you should never overfill gas. One click off and done.
 

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Nope, my 2015 has an open recall for EVAP. Just saw it in "my garage" when I connected to Mopar connect. View attachment 979240

Although it only seems to be for the 2014-2016 models.
View attachment 979241

For <$30 I might as well buy the canister and install it myself...don't want dealer mechs/techs touching my car.
Yup, the recall is on my wife's 2015 R/T Plus, but not on my 2014 Shaker.
 
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