Question about 1999 Ford Explorer

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Engine stalls whilst running on lpg engine somtimes stalls when car on tick over,(when engine at normal running tempature) when engine warming up everything all ok

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  • dontnomuch Jun 23, 2008

    my explorer is a 1997 model v6 with fuel injection,but also runs on lpg,many thanks mark

  • kbucalossi Aug 19, 2008

    hi ive got a ford 1.4 escort van it runs on lpg buts its the old conversion type with the gas going in at the cold air flow pipe ,it runs when driving but when you come to a stand still it cuts out any idea need help asap



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I know this sounds crazy, but look at the fuel filter that is attached before gas enters the carb. I had the same problem with my old Dodge. What they don't tell you when putting in the new filter is that you should cover the gas tank side with your finger, then pour fuel into the other end until it is full-Then connect it to the carb inlet. Without a full filter an air bubble developes in the filter, and when you make at turn, or drive on an odd angle, the air bubble floats to the top and the carb cannot get any gas-causing the motor to stall. happened to me.

Posted on Jun 23, 2008

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I'm going to assume that you have already done the normal maintenance that you need to do, plugs wires, tune-up. If not go there 1st.

There could also be an issue with the carb. a 1973 would be a good candidate for gasket failure in the carb. A carb kit is relatively cheap, if you do it yourself, but if you go to a shop, it can get pricey.

So let's look at the cheaper stuff first.

check for a vacuum leak - (a vacuum leak can also result from a bad carb gasket) close the choke by hand with the engine warmed up & running. The engine should slowly die. If it starts to speed up before it stalls, there is a vacuum leak some where. Check all of your hoses and gaskets for leaks. This is hard to do on the motor home because of poor access. You can get a cheap stethoscope from an auto parts store that can make listening for leaks a bit easier. (white lab coat sold separately.)

Check for a misfiring cylinder. (IF YOU HAVE NOT ALREADY REPLACED THE PLUGS AND WIRES) Remove a spark plug. Insert it back into the wire and lay it on the intake manifold where the end is touching the metal of the manifold. Crank the engine for a few seconds. (It may actually start and sound like ****) if the plug sparks, then it is OK. Repeat this for each plug.

Check ignition timing with a timing light. (Now that most cars are electronic, timing lights have got quite cheap.)

Another possibility is an electrical issue. Dodge is notorious for electrical system failures in the 70's, but most of those problems result in the engine not running at all.

Also, If you are planning on keeping the motor home for a while. Invest in a repair manual for that specific car. Try here;

Posted on Jun 23, 2008


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