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"Vapor lock" is a condition that occurs when fuel becomes heated to the point of evaporation. If your vehicle is truly vapor locking, it means that something hot is coming in contact with your fuel line somewhere, overheating the gasoline to the point of it vaporizing. This is HIGHLY UNLIKELY. If you truly do have a vapor lock condition, find out where the fuel is becoming heated and fix that condition.
On a 1997 Jaguar XK8, it is FAR more likely that you have a bad fuel pressure regulator or a bad ICU.
Check your Fuel Lines and your Fuel Pump. (I just fixed a problem with my 2001 Isuzu Rodeo Fuel Return Line).
Also remember that in Rodeos, as soon as you turn your car key to turn the ignition on (just to make the dashboard lights go on) a certain amount of gasoline gets pumped to your engine in preparation of you turning the key all the way to crank the ignition and start the car. In other words, even before you turn the key all the way to crank the ignition, the Fuel Pump will pump some gasoline through the Fuel Lines to your engine (it will pump the gasoline for about 4 seconds then stop). So when you go to start your Rodeo, remember to turn the key with one continuos motion so that you start the ignition cranking while the gasoline is being actively pumped.
In addition, you should never turn the ignition lights on without turning the key all the way to start the engine. Doing so could cause that bit of gasoline that was pumped to start the engine to just sit there and create problems.
Keeping overdrive on just means that when you reach cruising speed, the engine then goes into fewer rpms, saving gasoline. If you don't do a lot of highway driving, it doesn't make any difference. If you do, then you'd want to turn it on when you're on a trip etc. it should tell in your owners manual. if not call auto-zone they should be able to tell you. or the dealer ! good-day !
could b emssion control filter may be blocked and need replacing as 4 the fan leave car idling at normal opperating temp after 5min or so fans should kick in if it dosent and temp starts rising u may have a faulty thermo switch
Make sure your tires are inflated to the proper amount.
Change your air filter.
change the oil.
Take your car into the shop and get a tune up.
Don't fill up unless you are on empty, since all the gas weighs a lot Clean out your car- as mentioned above extra weight = more fuel consumption. Consider turning off the air conditioner and rolling down the windows instead. However at speeds of over 80kmh the use of AC is better for fuel economy than an open window. Don't top off because when you do the fuel will evaporate in a hot environment through the gas cap seal. Don't drive aggressively These are just a few tips that i could think off of the top of my head. Hope this helps. Good luck.
before you go to the inspeccion place, run the vehicle like 10 to 15 miles away and whwn you come back to the test, don't turn the engine off, and I recomend you this time go to a different inspection place (put 92 octane gasoline before) good luck!
try putting on a new thermostat, it mite have closed on you, i have a toggle switch on mine and it was over heating, mix a little water with your 50/50 antifreeze and new spark plugs, it should start rite on up
Sounds like your oil ran low and the pistons and rods are runnig without oil. This will seize the engine check your oil if it is real low put some oil in it and try to start it. If it starts you got lucky. Tahn find out how you lost all your oil before runnig it to much. If the engine doen't turn over than your motor is no good.