PO128 Code
My fiance and I replaced the water pump and put a 180* thermostat in and my check engine light came on with this PO128 code? Anyone know what it is?
Last edited by bambi88; Apr 23, 2011 at 12:16 PM.
You should check coolant level, Bleed air out ..
A code P0128 may mean that one or more of the following has happened:
1)Low engine coolant level
2) Leaking or stuck open thermostat Faulty cooling fan (running too much
3) Faulty coolant temperature (ECT) sensor
4)Faulty intake air temperature (IAT) sensor
A code P0128 may mean that one or more of the following has happened:
1)Low engine coolant level
2) Leaking or stuck open thermostat Faulty cooling fan (running too much
3) Faulty coolant temperature (ECT) sensor
4)Faulty intake air temperature (IAT) sensor
Have you had your PCM tuned to accept a 180* tstat? If not, I would put money on that being the problem. IIRC stock tstats are 195*.
Thread
Thread Starter
Forum
Replies
Last Post
Sporty7579
Monte Carlo Repair Help
11
Jun 26, 2009 06:22 PM













