Bobby (76.22.165.238) - Thu Apr 16 22:34:54 2009

About 3 weeks ago my ford Ranger started acting up.You can go about 6 0r 7 miles snd then it will start missing and barely run, then get a surge of power run 2 0r 3 miles and miss and lose power so bad you barely make it home.I have put 2 coil packs, spark plugs and wires, fuelfilter, Ignition module, catalytic converter, on board computer, speed sensor, checked the gas for water air flow sensor , checked the fuel pump, it has 40 pounds pressure, 32 PSI when running, even had it put on diagnostic machine and they said they could find nothing wrong with it. All the parts I have put on are NEW, no used parts. It is a 2.3 5-speed transmission, manual. Any suggestions, I am out of ideas and money.

Reply #1 Bob (208.108.152.214) - Thu Jul 16 20:37:02 2009

i had a 1987 chevy cavalier that did the ecxact same thing!! and i replaced abt $600 in parts and com to find out in my case it was a crank shaft positioning sensor. CSPS or CPS. $15

Reply #2 orey (74.249.88.161) - Fri Aug 14 23:26:41 2009

i have a 92 ranger with the same problem. come to find out it is the idle control valve. located on top of the intake manafold in plane sight. you can try to clean it but it will be better to replace it.

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