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Old 11-13-2009, 08:11 PM   #1
Talan423
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Focus won't go over 50 mph

I have a 2002 Focus SE, 2.0 SOHC AT, 132,000 miles on the clock. Yesterday while driving this car it just stalled out when i came to a light. The car started back up but lost all get-up and will now not go over 50 mph. It actually takes a lot of effort to get to 50 mph! The shifting feels like crap and there is constant hesitation during acceleration. At idle the exhaust system sounds to be "chugging" out of the muffler. It seems to rev in park just fine. Here are some repairs that have already been done to this car in the past year:

Spark Plugs
Wires
Coil Pack
EGR system
O2 sensors
Catalytic converter

Any help would be greatly appreciated!

Thanks!


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Old 11-13-2009, 08:15 PM   #2
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maybe you might need a fuel systems flush or new filter.

does it still stall in idle?
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Old 11-13-2009, 08:23 PM   #3
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No stall at idle.... just runs rough but no check engine light. it only stalled out the 1 time.
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Old 11-13-2009, 09:40 PM   #4
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Do you maintain your own vehicle, or pay someone?

Fuel filters should be replaced every 25k along with the air filter element. There could be other things we can't really determine from what information you've given us. You never gave us the mileage of the car, or the engine (SPI, or Zetec). If you haven't had a timing belt and you're well over 100k miles, that might be your problem, but the fuel pump is also suspect around this time.

Simple fuel pump test: turn everything off in the car, put the key in the ignition, turn the key to ON. You will immediately hear a buzzing sound, start counting "1 Mississippi, 2 Miss...", if the fuel pump buzzes for more than 10 seconds with a good fuel filter- that's a hint.

As far as the timing belt goes, you can inspect it physically with just a couple of tools, however at this point you should do a simple compression test.
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Old 11-13-2009, 10:45 PM   #5
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Being a SOHC motor I would do a compression check..... the SPI are very bad about dropping valve seats.
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Old 11-13-2009, 10:47 PM   #6
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Have the SPI engine with about 131k miles on it. i just went out and did the mississippi test and on got to 1 miss....
I just went to the parts store and bought a new fuel filter, going to change it in the morning. I hope this will solve my problem.... more tomorrow. I have a feeling it's more than this because the car is just running like crap.... feels like a mis-fire in there too.
Thanks again!

Tom
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Old 11-14-2009, 12:50 AM   #7
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Most likely not but does that engine have a "limp mode?" Where half the cylinders pump air to slow overheating?
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Old 11-14-2009, 04:53 AM   #8
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Sounds much like this ;

http://www.ehow.com/how-does_4899113...converter.html
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Old 11-14-2009, 07:36 AM   #9
Talan423
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That's exactly what i thought it was (converter) because i've had this happen to me before on a different vehicle. the exact same symptoms. i already changed out the converter and o2 sensors on this focus and no difference... $$$$$$$$ !
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Old 11-14-2009, 09:49 AM   #10
Talan423
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just changed the fuel filter... no difference. i then took off the air intake hose to look inside trhe throttle body/ intake manifold. i could see oil sitting inside at the bottom on the intake. i sprayed the MAF and inside the intake with throttle body cleaner.... now it won't start... i think i flooded it out.
seemed to be quite a bit of oil sitting in there (more than i had ever seen before)... bad pcv? fuel system clogged with oil?
still no engine light?????????
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