2.3L hsc topaz 89' stumbling..
 

2.3L hsc topaz 89' stumbling..
 

hey i know that this isnt a car faourm but hey its a ford too

the car seems to stumble when i accelerate between the 2000-3000 rpm range

what would cause this problem

fuel isnt the problem cuze it starts and idles well and reves well under and over the stumble

thanks for the help all
Jc

2.3L hsc topaz 89' stumbling..
 

Plug wires breaking down under load.
Fuel filter-flows enough at low load conditions, not enough for power.
EGR valve sticking.
Sparking Plugs with bad or wide gap breaking down under load.
TPS sensor bad fooling the ECM into thinking you closed throttle.
MAP sensor out to lunch intermittently, leaning or enrichening mix.

Pull the codes, and see what you find before spending $$. The TPS can cause the trans to drop out of OD if yours has an AXOD.

Again, pull the codes first.
tom

ps. you could get the 2.5 out of a Taurus, and have a mild sleeper...
that'd be fun, lots of torque, too.

2.3L hsc topaz 89' stumbling..
 

its just my beater (drive it in the feild and backroad) so an engine swap not feesable

is there a way to check the tps for corect funtion as i checked the wires and rotor fuel plugs