notsoswwuyd

hello all, I just bought a 89 gt I did the normal tune up and used only the best. I am having some trouble with the car, I think I will only ask one question a a time. My car almost lopes is that factory or what, I do not think that is is because it only does it somethimes. I already used b12 to check for vac leaks and did not find any. Being that I am new to the mustang world I thought that you guys might be able to send me in the right direction.

thanks.


if your were woundering the car is a 89 Gt convertable white ext with a white black and red int. AOD, and for now and completely stock.

1{}D{}{V}{}DGT

umm check ur plug wires the spark plugs maybe u need new belts maybe timing

cammedlx

what did you just say LOL check you tps and make sure it is reading somewhere around 0.98,and maybe clean out your iac with some carb cleaner

Quik

stock tps is .92 to .94 ideal for performance i .99 to 1.0 volts. clean your IAC, also see if you MAF is working properly

mdvaldosta

none of those will likely cause a lope (skip in this case), look into igntion - like plugs, wires, cap, rotor most likely

notsoswwuyd

i have already done cap rotor plugs wires coil, air and fuel filter, but my car still lopes. please help

roundman

recommend you clean the throttle body butterfly and interior housing with some good carb cleaner and also clean the Idle Air Control (IAC) mounted on the side of the throttle body also. the IAC is responsible for controlling the idle and they can get dirty and clogged up messing up the idle.

notsoswwuyd

I will do that tomorrow and I will post again and tell you if that fixes the prolbem.

thanks for all of the help, if anyone else has any ideas please let me know.

notsoswwuyd

you know what, I am going to do it right now .

notsoswwuyd

well it almost fixed it, now it only does it once the engine is a operating temp, and only about every 10 sec or so.

my IAC was dirty I cleaned it with b12 and also cleaned the TB.

any onther guesses