- Joined
- Sep 22, 2007
- Messages
- 13,074
- Reaction score
- 8,347
- Location
- Michigan
- Vehicle Year
- 1987
- Make / Model
- Ford
- Engine Type
- 2.9 V6
- Engine Size
- 177 CID
- Transmission
- Manual
- 2WD / 4WD
- 2WD
- My credo
- A legend to the old man, a hero to the child...
This pile of shit....
I kept it around as a cheap, decent driving beater to fill in when all the other junk is broke.
Anyways...
It devloped an issue where if you got after it (as in, 3/4-full throttle) it would start missing and cutting out...fuel mileage dropped alot (from 32 to like 24-25) and it was about undriveable on anything but flat ground.
I pulled the codes and got an O2 code (downstream), 2 codes relating to the throttle body/actuator, knock sensor, and EVAP code.
The knock sensor code had been tripped before with no affect on driving. As has the O2 and the EVAP.
So i focused on the throttle. By this time the car was running so shitty it was undriveable. It could barely make 25-30mph and forget a hill.
Replaced the throttle body (electronic), no change. Found two broken wires running to the plug, fixed those, and it ran decent as long as you didnt floor it.
Nephew used it to drive to work whlle his envoy was screwed up. After 2 days he called me said it barely made it into the parking lot. I went and picked him up then a couple days later picked the car up and hauled it home.
Got it home and it was back to running somewhat ok...still boggy as hell though.
Pulled codes again...the code relating to the TB itself was gone...but the throttle actuator code was back. Did some research and found this meant the pedal assembly was bad.
Fast forward to yesterday....changed the pedal assembly (most simple but biggest pain in the nuts job ever). Now its back to barely making 30mph again.
Car starts and idles fine, fuel pressure is around 60 (spec is 57-65 from what i found online), i didnt have my scanner to rescan it though.
Plugs, coil pack, ignition module, etc are all pretty new.
Engine is a 2.2 ecotec, auto trans, 225k miles.
Sorry for the stupid long post....but does anyone have any ideas or experience with these turds? The cobalt forums are worthless unless your asking about turbos or suspension mods.
I kept it around as a cheap, decent driving beater to fill in when all the other junk is broke.
Anyways...
It devloped an issue where if you got after it (as in, 3/4-full throttle) it would start missing and cutting out...fuel mileage dropped alot (from 32 to like 24-25) and it was about undriveable on anything but flat ground.
I pulled the codes and got an O2 code (downstream), 2 codes relating to the throttle body/actuator, knock sensor, and EVAP code.
The knock sensor code had been tripped before with no affect on driving. As has the O2 and the EVAP.
So i focused on the throttle. By this time the car was running so shitty it was undriveable. It could barely make 25-30mph and forget a hill.
Replaced the throttle body (electronic), no change. Found two broken wires running to the plug, fixed those, and it ran decent as long as you didnt floor it.
Nephew used it to drive to work whlle his envoy was screwed up. After 2 days he called me said it barely made it into the parking lot. I went and picked him up then a couple days later picked the car up and hauled it home.
Got it home and it was back to running somewhat ok...still boggy as hell though.
Pulled codes again...the code relating to the TB itself was gone...but the throttle actuator code was back. Did some research and found this meant the pedal assembly was bad.
Fast forward to yesterday....changed the pedal assembly (most simple but biggest pain in the nuts job ever). Now its back to barely making 30mph again.
Car starts and idles fine, fuel pressure is around 60 (spec is 57-65 from what i found online), i didnt have my scanner to rescan it though.
Plugs, coil pack, ignition module, etc are all pretty new.
Engine is a 2.2 ecotec, auto trans, 225k miles.
Sorry for the stupid long post....but does anyone have any ideas or experience with these turds? The cobalt forums are worthless unless your asking about turbos or suspension mods.