1999 dodge caravon sport vaper lock
I had a 1999 Grand Caravan 3.3L and never had this problem and I lived in Fla. at the time but other vehicles that I've seen this problem in. First, is this vapor lock between the gas tank and the engine or in the engine compartment? If it's between the gas tank and the engine, you might have a rusted pin hole in the steel fuel line or sometimes there might be a section or rubber line in the fuel line where there might be movement in the system. If so, look for a rotted hose or a wet spots on the fuel line from the gas tank to the engine compartment. A tiny pin hole can leak gas out and/or air in and if it's small enough the gas can evaporate before it hits the ground. If it has started locking up in the engine compartment only after all these years, I'd have the fuel pump pressure checked. If this is the case and if it hadn't vapor locked since 1999, up until now the fuel pressure has been adequate to keep the fuel in it's liquid state in the heated environment of the engine compartment. If the pressure has gone low and the fuel line is bolted to something hot like the water pump, for example, like it was on my 1968 307 Chevy Bel Air, the fuel will boil hence, vapor lock. If this is your problem and you can't get it fixed right away, follow the fuel line up from the frame and look for it to be routed, again, near / onto something hot. If you can get it loose and away from the hot area without kinking the steel tube, this may help for a while. I don't know you or how much you know but I would advise against cutting the line and adding rubber hose as clamping a hose to a smooth steel line will eventually leak
and possibly cause a fire. If you know what you're doing or know someone who does, you could use a flairing tool and add more steel line if necessary. In any case, be careful. In the long run, it is always better to repair it or have it repaired properly. Good luck. Jeff M.
Apr 10, 2014 |
1999 Dodge Caravan