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Can anyone help?


THSteve
04-16-2005, 09:32 AM
Have a question....Sometimes I'll be driving and all of the sudden when I hit the gas to accelerate nothing happens. The RPMs don't even go up. Sometimes I even lose speed unless I slowly give it gas. I have replaced all plugs/wires, and even the MAF sensor. Could it have anything to do with the throttle? Transmission? Any answers will help.

THSteve
04-17-2005, 02:53 PM
Is there another site where I can ask a question like this? I'm not being rude I just need help.

molehole
04-17-2005, 08:54 PM
Hmmm.. Possibly something in the transmission, but have you checked for any codes yet?? How about fuel filter, pug wires hooked up right, coil packs? What year do you have. That may help.

THSteve
04-17-2005, 09:46 PM
Its a 94. Plugs/wires are hooked up right. My mechanic hooked it up to a computer and it did give a code. It was 186 INJ pulse width too high or MAF too low. He said the most likely cause was a faulty MAF sensor so he replaced it.

molehole
04-18-2005, 05:18 PM
Well thats an awfully expensive part to just replace. Make sure that it is the correct air flow sensor and that it wasn't damaged when it was put in. If you have a star torx screw driver it comes out easily. They have them at auto places and Sears. It looks like a hex head with a hole in the center. I would try a different mechanic. It definately has to do with the way the computer is reading air flow. Hope this helps

THSteve
04-18-2005, 06:26 PM
Thank you a bunch for your help.

l-m tech
04-18-2005, 06:42 PM
does it do it all the time. have a compitant shop hock up a fuel gauge and see if the fuel pressure is dropping off. it sounds like you are loosing fuel pressure

THSteve
04-18-2005, 09:03 PM
it doesnt do it all the time but it is low on power all the time.

l-m tech
04-19-2005, 10:25 AM
it doesnt do it all the time but it is low on power all the time.
could have a pluged cat. converter

THSteve
04-23-2005, 05:16 PM
could have a pluged cat. converter
Whould a plugged cat. cause the rpms to not go up?

way2old
04-24-2005, 05:38 PM
Yes it will. If there is no way for air to go out, there is no way for air to go in.

THSteve
04-25-2005, 11:10 AM
I'll try that. Thanks alot guys for your help. I really do appreciate it.

awpstl
05-07-2005, 11:27 AM
Did the car get a weird smell in it when it first lost power? Because what you described is almost exactly what happened to mine and I had to replace the cat converter

B33p3r
05-07-2005, 11:39 AM
Wouldn't hurt to check the air filter if you haven't already. Take it right out. I had a squirrel that was hoarding acorns last fall. I cleared about 3 lbs out from under the filter. Easy check.

THSteve
05-09-2005, 02:04 PM
I checked the air filter and its fine. I don't recall a smell, when it loses power. I took it to a mechanic and he hooked it up again to a CPU and it showed no codes. He suggested replacing the fuel pump.

exploded99
05-09-2005, 10:55 PM
TRhere is a throttle position sensor which tells the computer how hard you've pushed on the gas pedal. On my v-8 its on the side of the throttle body. Its a possibility.

You need a better mechanic. You do not just replace parts until it works. If he thinks its a fuel pump issue then you do a fuel pressurre test. Thats what diagnosing a problem means - you do the test to tell you if what you think is the problem really IS the problem.

You might be better off to take it to ford and have them tell you whats wrong, then deciding whether to do the work yourself. They will charge you for diagnosis, but it's cheaper than just throwing parts at it.

chr97
05-14-2005, 06:04 PM
I had a slip in the trany, and a very clogged cat, and they can run a diagnostic to find out how much is running through, I agree that you need a new mechanic. The rule is always take it to 3 places. Use the dealer for only a diagnostic, they work at ford they specialize in ford.

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