1990 ford ranger 2.9 sputtering

Reply Subscribe

Thread Tools

Search this Thread

Sep 17, 2017 | 06:27 PM

Paul Carey

Thread Starter

New User

Joined: Sep 2017

Posts: 1

Likes: 0

1990 ford ranger 2.9 sputtering

Hello all.

I've become desperate for help. Im pretty lost at this point.. But some quick info about what my issue is..My truck seems to act as if its wanting to stall out or misfiring when I drive it. It usually begins once the motor is nice and warm ( normal running temp) . It idles fine. Also when its acting up the RPM's will surge back n forth.

I have done the following:

Replaced all Spark Plugs.
Replaced all Spark Plug wires.
Replaced Distributor Cap.
Verified Firing order is correct.
Replaced Coil Pack.
Replaced ECT.
Replaced Thermostat.
Replaced Thermostat Sensor.
Replaced IAC valve.
Replaced IAT Sensor.
Replaced Air Filter.
Replaced Fuel Filter.
Replaced TPS also adjusted.
Cleaned Throttle body and replaced gaskets.
Bought 6 new Fuel Injectors ( haven't installed yet )

Things I haven't done:
Take it to junk yard.
Run it into the lake.
Set it on fire.

Please help! Im lost and just dont know what else to check that would be causing this issue. its beginning to drive me insane

Oct 4, 2017 | 12:03 AM

blue_ranger

New User

Joined: Jun 2006

Posts: 11

Likes: 0

Have you tried SeaFoam or injector cleaner? I had a problem with my 88 where the O2 sensor wires were exposed after melting on the transmission. That made my truck run like crap.