Starts, Immediatly stops, emmitting white smoke???
11-14-2008, 01:32 PM
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Starts, Immediatly stops, emmitting white smoke???
Help! Have a 1995 F150. Recently replaced fuel pump, fuel filter, air filter, plugs and wires. The truck was running like a champ but after leaving it parked in my driveway for about five days it won't start. It will turn over and eventually start but will emit a good amount of white smoke. And as soon as i let off the gas it's done. IF i start it and try to let it idle it will lope erratically for about four seconds and then die. I have thus far checked all i did regarding the fuel system and everything seems to check out. Next i moved on to the MAF sensor. I cleaned and tested it - also seems to check out. Now im pretty clueless as what to think of next. Any suggestions??? 
11-14-2008, 02:31 PM
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white smoke = coolant.
Check the oil and see if there is coolant in it, it will look like chocolate milk if it hasn't separated. Also, check the coolant for the same thing.
If those are fine, its not a head gasket, but it could be an intake gasket
If there is coolant or oil where they aren't supposed to be, get a compression tester and pull the plugs and check compression. If you have one thats very low, the head gasket is likely popped on that side, if you have two that read the same that are side by side, the gasket popped and took a section of material between two cylinders with it.
Does the truck idle really heavy and ever warm all the way up? If it only does it when its been sitting for a wile, I'd bet intake gasket, its letting coolant seep into and down an intake port into the combustion chamber and letting it accumulate.
Check the oil and see if there is coolant in it, it will look like chocolate milk if it hasn't separated. Also, check the coolant for the same thing.
If those are fine, its not a head gasket, but it could be an intake gasket
If there is coolant or oil where they aren't supposed to be, get a compression tester and pull the plugs and check compression. If you have one thats very low, the head gasket is likely popped on that side, if you have two that read the same that are side by side, the gasket popped and took a section of material between two cylinders with it.
Does the truck idle really heavy and ever warm all the way up? If it only does it when its been sitting for a wile, I'd bet intake gasket, its letting coolant seep into and down an intake port into the combustion chamber and letting it accumulate.
