Question about Dodge Caravan

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1991 dodge with a 3.1 ltr engine and it will not start in cold weather, changed the fuel pump and cleared out the fuel lines changed the fuel filter and once again if it go to below 20 it will not start after sitting over night once it warms up starts fine. and once started it can sit for hours at below freezing temps and start fine just wont start after over night shut down im at whits end please help

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  • Master
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You could have a bad cold start valve, go to an auto parts store and buy the cold start valve and replace it. you will see it on the intake manifold also pull off the air cleaner or hose and get a can of berry mans carb cleaner and clean the throttle plate inside and out then lube the throttle cables with Wd 40 then try it, if it starts your set, if not try pushing the throttle all the way to the floor and crank for 15 seconds then wait one minute then slightly press the gas pedal and try starting again this is how you clear flooded engine. If it starts you know that the throttle plate or cable froze shut and would not allow air into the engine causing it to flood. also check that the O-ring is not missing on the distributor cap which would allow condensation to form inside the cap shorting out the plugs and allowing it not to run. if it does it again pull the cap and look inside the cap if you see moisture then you need to replace the cap and rotor and O-ring.

Posted on May 28, 2009

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  • Dodge Master
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The MAP sensor may have gone bad, quick way to test it is. Next time the van will not start, disconnect the MAP sensor and if it starts then replace it.
Good luck and hope this helps. keep me posted.

Posted on May 28, 2009

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