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I have an '06 Colorado Crew Cab with 120k miles on it. I have neglected it for quite a while since there was nothing 'wrong' with it. That said, about 2 months ago, I got the CEL for a stuck thermostat. I finally had time to get it into the shop last week and have it switched out. Since the switch was done, it has started to have a slight 'power drop' or 'studder' when I am driving at freeway speeds, lighter throttle and lower RPM's (55-60 MPH at 1500 RPM's)... Also the mileage has dropped from around 22MPG down to about 16MPG...
The only thing I found under the hood was that a plastic clip that has four wires leading in to the engine - it's right on the front of the motor - cracked and was loose, but I zip tied it back on and made sure none of the wires were broken.
I know I need to change out my air filter and probably need to change my plugs and wires soon. Has anyone had a similar situation to this? Could it be the coil?
My next stop is probably going to be the dealership to have them check it out, but they said without having some kind of code to run, they may not be able to find the exact cause.
The only thing I found under the hood was that a plastic clip that has four wires leading in to the engine - it's right on the front of the motor - cracked and was loose, but I zip tied it back on and made sure none of the wires were broken.
I know I need to change out my air filter and probably need to change my plugs and wires soon. Has anyone had a similar situation to this? Could it be the coil?
My next stop is probably going to be the dealership to have them check it out, but they said without having some kind of code to run, they may not be able to find the exact cause.