Have a 2001 6 cyl Ford Escape and the car is difficult to start as if the idle is too low. After the vehicle runs for several minutes it seems fine. There is a gas ododr coming from under the vehicle and not in the engine compartment. Fuel filter problem is my guess but need the opinion of an expert.
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Re: Smell of fuel
What do you mean by "as if the idle is too low", does the car start normally but then idle at less than 750 rpms? or idle rough? If either of these is the case it could be bad gas, fuel injectors or fuel pump. As far as the odor, do you every see any fluid if you look under the car? A punctured fuel line would be rare but would fit all your symptoms. hope this helps :)
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That resistor only tells the car's computer that it is cold outside so it will make your car run rich. Your fuel economy will degrade by about 2-3mpg and spark plug life will decrease significantly. I'm sure you purchased the resister with promises of "more power" and that may be true, but I'm going to recommend not using the resistor.
Your vehicle in particular would be very difficult to bypass only the IAT as it is physically part of the Mass Air Flow sensor. It has a 6-wire connector and not much information is easily available from alldata on which wires go to which part of the unit.
I would check to see if your ford has a fuel filter on it,if so and it is at the mileage to replace it go ahead and do so.Also I would check to see if it was time for a tune up.The fuel filter is pretty cheap and if you can turn a wrench you could do this job at home and save yourself some cash.Remember that after the filter is replaced cut the switch on 3 or 4 times without starting the engine to prime the filter.Hope this will help you out.
The engine will indeed race for several reasons. One being a vacuum leak, a bad IAC control, a dirty throttlebody, a dirty fuel injector, a leak at the PCV valve which ford forgot to clamp for future reasons like leakage. The computer is in the firewall on the passengers side of the vehicle lokking in the front of the vehicle. Right at the top with wiring into it.
To update my earlier repair on the 2001 6 cyl Escape: When cold, and when the ignition was turned over but no accelerator pressure given, the rough idle finally returned the P0303 code again when the check engine light came on indicating that it wasn't caused by the plugs or the coil. FYI, I had replaced the intake manifold gaskets during the original repair and just prior to that I had replaced the fuel filter which was very dirty (I cut it open to see).
The repair manual referred to fuel injectors as a possible problem. I have run three tanks of fuel using different injector cleaning products and am very pleased with the results. Cold starts are much smoother and I am unable to coax out the P0303 code or any other code.
My opinion, change the fuel filter, use a fuel injector cleaner for a couple of tanks, change the plugs if the problem still exists. The coils were not the problem on my vehicle.
1.Air filter, clean the air filter first and try it again, if it is the air filter cause this problem and get a new one put in.
2.check your oil cover cap, see if there are some white steam bubbling mixed with oil, if it is, maybe either the head gas kit or the block leaking, also check your coolant level. sometime you will see oil in your radiator. means the block is leaking
Hope this can help a little bit
3.Cooling fan doesn’t function right and cause over heat.