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my pt cruiser wont start at first

 
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Old 22 Jun 2013, 07:12 pm
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Default my pt cruiser wont start at first

I have a 2005 Pt cruiser. In the mornings or when it has sat for 4 or more hours it cranks but dies after starting immediately, after 4 or more tries it starts fine the rest of the day. I have changed plugs and wires and has had Chrysler run a diagnosis and nothing was wrong. No codes come up. Any ideas?
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Old 22 Jun 2013, 07:22 pm
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Default Re: my pt cruiser wont start at first

Check fuel pressure.
also if fuel pump is bad, fuel will run back to the tank, when you start it at first it pressurizes the lines and what little fuel is already at the injectors will fire then die while the air is purged from the lines and fresh fuel reaches the injectors. Had the same issue with my Dodge Ram and the fuel pump was the cause of the issue. Check the fuel pressure, that may be good or low, but after it sits overnight check to see if theres fuel in the lines at the rail... if not the pump is bad.
When I pulled my line it was dry so we knew the fuel was running back to the tank. Pump had good pressure just bad seals when sitting.
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Old 23 Jun 2013, 12:10 pm
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Default Re: my pt cruiser wont start at first

Thanks but it dont have a shrader valve to check pressure. Is there any other way to check it? If it is the fuel pump ill prob just deal with it. I have noticed if I leave key on and pump gas pedal it has started better.
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Old 23 Jun 2013, 02:11 pm
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Default Re: my pt cruiser wont start at first

Quote:
Originally Posted by Roy2k View Post
Thanks but it dont have a shrader valve to check pressure. Is there any other way to check it? If it is the fuel pump ill prob just deal with it. I have noticed if I leave key on and pump gas pedal it has started better.
Pumping the pedal will open the injectors to purge air somewhat so you will get fuel. Try this a day you don't have to do anything after it sat all night. Just pop off one of the injectors or the rail and see if its full of fuel or dry. you may get some drips where fuel sits above the injectors but the rail will be empty if fuel is flowing back. If you pop the rail off or an injector and a lot of fuel is present, it may just be low fuel pressure from the pump.
My ram didn't have a schrader valve either so when I pulled the rail it was dry.. replaced the pump and I was running a storm, even got better mpg too.

Due to bad pressure you wont get a proper spray pattern or proper fuel supply which will cause lean/rich conditions as well.
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Old 25 Jun 2013, 06:42 pm
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Default Re: my pt cruiser wont start at first

Replacing the fuel pump this weekend
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Old 25 Jun 2013, 09:54 pm
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Default Re: my pt cruiser wont start at first

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Originally Posted by Roy2k View Post
Replacing the fuel pump this weekend
Run that tank damn near dry, the more fuel that's in it, the heavier and more awkwards it is to maneuver.
Take plenty of pics to post.... good luck and be careful around the fuel.
Use caution with the fuel lines not to break them or damage any seals. Take your time.
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Old 25 Jun 2013, 09:55 pm
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Default Re: my pt cruiser wont start at first

Where are you located Roy?
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