Car wont start or if started runs poorly 98 ford taurus 3.0
Car started running rough like starving for fuel I tested on a meter under dash board, 3 bad points came up, Two of which said fuel run to lean and also the mass air filter sensor came up showing bad..
so I purchased mass air censor and installed, still ran rough so I tryed replacing fuel filter ran rough then seemed to run good, I parked the car went to run again about an hour later ran rough again... let set for about half hour tryed again now wont start.
when It does run sounds like its popping like its out of time
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With so little information reaching a solution is not likely.Does the fault happen every time the engine starts or only the first time? Does the engine run normal after the stumble? If it stumbles after every start a vacuum leak could be the cause. if it stumbles when first started turn it off and restart.If it starts as normal on restart. There is only one reason The coolant temperature sensor has failed. when this happens there will be a strong odor of gasoline. The computer meters fuel based on the signal it gets from the temperature sensor. when there is no signal it meters maximum fuel causing a slow rough first start and poor fuel milage.
Have a shop run a fuel pressure leak down test and have the engine coolant temperature sensor checked for proper colds engine value, if it is reading wrong for any reason then it can starve for fuel cold and it makes it hard to start.
sounds like the igintion module or ecm,you can test your module with a meter or some auto parts stores can test them,on the ecm you would have to run a thorough data diagnois on it,best bet would be just tapping it and checking to see if the car dies,alot times the ecm will get hot and become faulty.
most likely the feul pump. test the feul pressure with a gauge. look of ther little metal feul line on the intale manifold. tst pressure. have freind listen at the rear of the truck for the pump prime. key on only. then start the truck, friend should hear pump running. could also need a timming chain but pump is more tlikely