limp mode with P0128?
today we drove the car for about 39 miles and the time says about 1h 9mins total of drive time (stop-go-mall-dinner, etc). Drove in the freeway at about 60-70mph then about 4 miles away from the house - in the stop light, when i'm to start - the car just didn't move like it's stuck in neutral. So i placed it from Drive to Park, then Park to Drive again.. it moved but won't shift to any higher gear (like it's just in 1st gear).
I'm watching the temp gauge and it was slightly above 80.
Was it (about to) overheat? the sound of the car seems different and I can smell some warm moist from the hood when we reached home.
Was it it limp mode? Is it because of the P0128? I'm waiting for the end of the month to have this fixed - but still looking for a decent independent shop here in Houston (i have a separate post on that).
I may end up taking this to the dealership.. hope that it was because of the P0128 code.. or because it was in limp mode (if it was), would there be anything that I need to watch out (or prepare for to pay for repairs??)
Thanks in advance.
Also, how do you know its a P0128? Did you get the fault code read via an OBD2 ScanTool? If not, head to AutoZone, PepBoys or whatever,... they'll usually read it for free.
If you have a verifiable P0128,.... "P0128 - Coolant temperature below Thermostat regulating temperature",.... you likely need a new thermostat. There's some DIY here,... search.
I drove the car around our area this morning and it seems to be fine - but still the CEL.
Hopefully it's just the thermostat and nothing else :-(
I'm scared to drive the car now for periods of time. May need to get to tow this car to the dealership so as not to cause anymore problems (and money).. :-(
The limp mode is definitely something else. Did you service your transmission at 39K miles?
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what kind of transmission service is this? maybe they did it if its a recommended service for that mileage.. just never paid attention to that.
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Yes, it'll take longer for the engine to warm up and it'll throw off the computer since its expecting certain engine temperature after a certain amount of driving.
Limp mode is almost always transmission related,... check transmission fluid level. If low you probably have a transmission oil leak at the pilot bushing adapter.
how would i know what type of transmission i have in the car (2006 c230 ss). what things to i need to watch out for if its 7G?
to update: local dealership said they were only able to retrieve the P0128 code and that's it. no other codes. I told them about the car going to limp mode, they said as long as it was able to reset itself and i was able to drive it it should be ok. If it had any other problems they should have been able to retrieve the other codes but said they only got P0128. Do i still have to insist that they replace the trans fluid for a better peace of mind? any other things i need to tell them to check on? or would this just give them ideas on what to charge? seems like the service advisor is trustworthy..





