Hi all,
I bought a 1989 ford ranger for 800 bucks 2 years ago now, fairly high mileage (253,000KM) it was a great truck until about a month ago. 4 speed and O/D 2.3 4cyl engine. It idles quite good. My problem is when i'm driving down the roads in town in 4th gear at 50-60 km/h it will start jerking, i am pretty sure its not a clutch because it isn't reving up. If i'm doing the same speed in third gear it seems to be fine. Same thing down the highway in od, 100 km/h its jerking. 110 km/h its fine. seems to do it around the 2000rpm mark. ALso it is making some kind of ticking noise after its been started up and goes back down to 850 rpm or so. What would the problem be?? I put new plugs in it today it isn't as bad. Having a hard time finding a set of wires for it. According to the computer at napa, bumper to bumper, etc, it shows a round distrubutor cap with 4 wires and a 5th wire going to the coil. My truck does not have a seperate coil i am guessing its part of the cap itself. It's square and has only 1 wire going to each of the 4 cylanders.

Thanks in Advance

allright, i would say, check your fuel pressure, since you dont have a distributor its fuel injected, take a tire pressure gauge and check the pressure on the fuel rail it should read in the low 30's, if its not, replace the filter, if its still low, its in the fuel pump. may also be that the coil packs are bad, which is what you are describing with the four wires on it, you can have those tested at your local auto parts store

Try autozone.com. Inter your truck's description, (you don't have to "register")and then look under the maintenance/repair info ... you'll be surprised how much info is there on your particular model.