I have a 1989 with a 2.9. It almost stalls out when you get to 3000 rpm. If you was going up hill or down and got to 3000 the speed would drop until the rpm dropped then speed would pick up. I have replaced fuel pump,fuel pressure regulator, throttle position sensor, coolant temp sensor, plugs, wires,distributor cap and button and map sensor. What am i missing???? any help appreciated and thanks in advance.....

 

Cant really help much but you could try hooking up a timing light if you have one and running up the rpm in the shop to see if the spark get eratic above 3000. That might indicate a bad ignition module... just a guess.

 

thanks for the advice. I have had it parked a while and if I decide to keep it I will try that. I've not had any time to work on it due to working so much. I'm considering cutting my losses and just getting a replacement for my bll. I love the bll but This problem has really gotten on my nerves. If anyone else has any suggestions thanks in advance.