I need some help from someone who knows what they are talking about and please don't waste my time by telling me to junk the car. I am mechaniclly inclined but still need some help.
Issues with my car: hard to start in the mornings but starts fine the rest of the day, from a stop it has very poor acceleration and there is almost no response when i push the pedal to the floor at normal speed, it just slowly gains speed, and i have black smoke coming out of the exhaust pipe and I get less than 100 miles out of a 16 gallon tank. Also the front end of the car shakes around 20 to 25 and goes away around 30 mph.
Things I've done: new plugs, wires, distributor cap, rotor, air filter, PCV valve, gas cap, oil change and filter, fuel filter, coolant flush, and thermostat. Cleaned throttle body, intake manifold, MAF, and linkage. Replaced transmission fluid, filter, and gasket. Replaced fuel injector o rings and fuel line o rings, and fuel regulator. Replaced about half of the air and vaccuum hoses, and several gasket on throttle body. I also pulled an EGR valve from a junked car of the same kind as mine and put it on mine.
What am I missing? Could it be one of the hoses leaking that I haven't replaced yet? Timing issue? Why am I running so rich?
If you have any suggestions that I can do myself please let me know and give me a break down of how to do it. Thanks for your help.94 Ford Taurus GL 3.0L V6 with some issues. Please help!?
First thing I would do is get the codes scanned. Either a mechanic or autozone, you need a code to give you direction. It could be a bad engine coolent sensor or a MAF sensor, cleaning it would solve a lean condition and you have a rich condition, or the pcm causing this. Egr wont do this unless it was stuck open, but then it wouldnt idle if it was. Get the codes then post back what they are and I can give you some better direction. Low fuel psi is not the issue with black smoke . Also a fuel psi check would be helpfull, should have 35 at idle and 40 when the pedal is goosed.94 Ford Taurus GL 3.0L V6 with some issues. Please help!?
blocked exhaust
bad mass air flow sensor
bad ect sensor
engine running too cold, need 190degree thermostat
low fuel pressure94 Ford Taurus GL 3.0L V6 with some issues. Please help!?
How about the Oxygen sensors?
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I had a 2002 Ford Taurus 3.0l Vulcan motor which had a bad catalytic converter under the passenger seat. I trouble shooted that problem by placing a vacuum guage on the EGR valve the vacuum gauge needle was jumping up and down. I drilled a hole between the engine cats and the Catalytic converter under the passenger seat and the needle stopped jumping so I had the converter removed and I took it for a ride ran like an entirely new car, It never ran that good the entire time I owned it.... Any blockage is terrible on a cars performance not to mention the damage it does to the head gaskets.
ReplyDeleteThese Taurus have plastic Fuel Sending units on the gas tank that crack from age or over filling your tank and you don't really notice it unless you are getting a good whiff of gas fumes when you get out of the car otherwise the fuel spills along the roadways while you are driving and once you turn off the key it stops the fuel pump shuts off and so does the flow of fuel. That would explain one reason why it would be a hard start in the morning because overnight the fuel would drain back into the tank and your pump would have to start from one end of your car to the other to get fuel to the engine Change the fuel filter again your tank may be filthy too.
I notice this post is from Nov 2010 but I hope it helps someone else who comes along looking for ideas and advice.