this doesnt make sense
Thread Starter
Super Member
Joined: Dec 2010
Posts: 712
Likes: 2
From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
this doesnt make sense
ever since i had the car (since new) the coolant temp always stayed at 80c then at idle it would rise to 87c...and my car seems faster
then of course i get the p0128 then i changed my thermostat with a wahel one
now the temp is constantly at like 89c and doesnt go lower or higher at all..but it seems the car is alot slower
anybody know thanks?
which thermostat is the one from the factory?
then of course i get the p0128 then i changed my thermostat with a wahel one
now the temp is constantly at like 89c and doesnt go lower or higher at all..but it seems the car is alot slower
anybody know thanks?
which thermostat is the one from the factory?
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Joined: Jun 2008
Posts: 19,942
Likes: 191
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Well it was not new. A P0128 means the car is taking too long to warm up and not reaching full operating temperature.
Senior Member
Joined: Jun 2011
Posts: 264
Likes: 2
From: Lumberton, TX
2009 ML350, 2007 GL450, 1963 GMC, BMW 325i
It's funny you bring this up.
During my rebuild I installed a new thermostat, and now my temp. seems like it's a lot more sensitive. It used to just get up to temp. and not move. Now it bounces around as I drive, and stop, etc...
It stays right around the 85-90 degree mark, but changes depending on what the car is doing.
Just thought it was odd that it acts more sensitive now.
During my rebuild I installed a new thermostat, and now my temp. seems like it's a lot more sensitive. It used to just get up to temp. and not move. Now it bounces around as I drive, and stop, etc...
It stays right around the 85-90 degree mark, but changes depending on what the car is doing.
Just thought it was odd that it acts more sensitive now.
Thread Starter
Super Member
Joined: Dec 2010
Posts: 712
Likes: 2
From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
It's funny you bring this up.
During my rebuild I installed a new thermostat, and now my temp. seems like it's a lot more sensitive. It used to just get up to temp. and not move. Now it bounces around as I drive, and stop, etc...
It stays right around the 85-90 degree mark, but changes depending on what the car is doing.
Just thought it was odd that it acts more sensitive now.
During my rebuild I installed a new thermostat, and now my temp. seems like it's a lot more sensitive. It used to just get up to temp. and not move. Now it bounces around as I drive, and stop, etc...
It stays right around the 85-90 degree mark, but changes depending on what the car is doing.
Just thought it was odd that it acts more sensitive now.
obviously u had to drain the coolant when u rebuilt ur engine (nice job)
is this my problem?
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Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
Listen to Glyn. I had a P0128, as well. It was in pending status for a while before the CEL appeared. During this time, the car ran at ~80C indicated on the gauge and gas mileage dropped by a good bit. I noticed no improved acceleration or power or anything of that sort.. actually, car didn't seem too happy about it.
I didn't flush my coolant during my change. As a matter of fact, aside from the top up at the thermostat change, my coolant is still factory fill at 134,700 miles. I plan to have it flushed by 150k.
I didn't flush my coolant during my change. As a matter of fact, aside from the top up at the thermostat change, my coolant is still factory fill at 134,700 miles. I plan to have it flushed by 150k.
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