Question about 1992 Dodge Caravan

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Vapor lock?? I use it on a mail route. After about 3 hrs, it starts choking then dies. It has to sit for awhile before it will go again. It will start within minutes after dying, but dies as soon as I put it in gear if it hasn't cooled long enough. It started doing this this past couple of weeks when the temperature outside got really hot and humit. Hight 80's.

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  • babyjane5 Jul 12, 2010

    I will be working on this tomorrow-July 13. Thx

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Hi, to me the problem sounds like a fuel related problem if it was something like a sensor problem such as oxygen sensor then this would cut out as soon as the engine temp reached normal then it wont start until the engine has cooled, but as your car runs for a long time before it plays up then to me this points towards a fuel problem.

Now the first thing you should try is to go out and buy a fuel line cleaner, a good brand to buy is called Red X, you can buy these from most filling stations just make sure you buy correct type ie petrol or diesel, now when you buy one read the instructions and it will say something like pour into full tank of fuel how ever dont do this pour it into half a tank of fuel due to the fact your having problems so doing this will make it clean a lot better and work a lot quicker.

now when you pour this into your tank you need to do the following.
1. drive normal for at least 50 min
2. then drive a bit harder like pulling away faster and taking the revs up higher for the next 15 min
3. then drive normal for the next 15 min

doing this ensures the whole fuel system is clean and all the injectors are clean it makes sure the engine has been run at higher pressure and lower pressure using this product will clean everything and it should also solve your problem, most people with your type of problem find this product will work first time.

if it does work then its best to use this product say every month to ensure it keeps running its best and it also improves mpg.

it may also be worth getting the fuel filter changed as this can cause your problem if this has not been changed recently, to me it sounds like you have picked up some dirty fuel and its working it way around the system and then it builds up in the injectors and causes it to cut out, but then it cools and unblocks when you next start the engine.

so give it a try and let me know how you get on ok

Posted on Jul 10, 2010

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