Question about 1988 Ford Ranger
Hi Guys: I have a problem that NO one has been able to fix. I have a 1988 Ford Ranger, 2.3 Liter, 4 cylinder with 200,000 + miles on it. I go out in the morning and it starts and runs great. I go to work stopping for breakfast and go out and it starts great, but when I shift in first and go forward it coughs and sputters for about 10 to 20 seconds after wich it runs great.After I get to work if I need to go some place it coughs and sputters again. So far the truck was the plugs, plug wires,stator, EC module,fuel pump relay and another relay replaced. I have been fighting this problem for the better part of a year.. It does notmatter if it is summer or winter.
Have you changed the fuel filter? Checked for cracked or loose vacuum hoses? Changed distributor cap and rotor? (If equipped).
I beleived your fuel filter is clogged or have impurities in the fuel system.
Change your filter and dump the contents of the old one in a clean container so you can check for impurities. Keep me posted.
Posted on Apr 29, 2010
I would check the coolant temperture sensor for the correct resistance. Does it do it if you let the truck run for a couple minutes before you take off? The other would be the O2 sensor. It sounds as if it is an open loop problem. EEC-IV computers use certain readings from different sensors, depending on if the vehicle has just been started, (open loop), then after the vehicle has run for two minutes or so, it goes in to closed loop, then the computer uses input from more sensors to make the engine run properly. If this only happens when you get in the vehicle and take off, I would look into the 02 sensor and the coolant temp sensor. Has the fuel filter been replaced?
Posted on Apr 28, 2010
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Posted on Jan 02, 2017
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