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P0128 - 2005 Accord LX 2.4l #4601225
12/12/17 05:55 AM
12/12/17 05:55 AM
Joined: Aug 2017
Posts: 11
NC
Will32283 Offline OP
Will32283  Offline OP
Joined: Aug 2017
Posts: 11
NC
This past Thursday, my CEL came on and took it to Advance immediately for a code test. P0128 is what they gave me. I got this car with 266xxx miles on it in November 2015. I have put 15k (281,142) miles on it as of now. Ever since I have had it, it takes the car approximately five minutes to warm up. My car is not over heating at all but the temperature gauge needle usually takes 2 minutes to move. I know the P0128 code could be between the sensor, thermostat, or alerting coolant level. It is not extremely low but towards the minimum level. Is it best to go ahead and replace the thermostat? Much appreciated!

Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601242
12/12/17 06:55 AM
12/12/17 06:55 AM
Joined: Oct 2011
Posts: 2,975
Chicago, IL
Brybo86 Offline
Brybo86  Offline
Joined: Oct 2011
Posts: 2,975
Chicago, IL
I would add a little coolant first and see what happens


08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog
Re: P0128 - 2005 Accord LX 2.4l [Re: Brybo86] #4601246
12/12/17 07:06 AM
12/12/17 07:06 AM
Joined: Aug 2017
Posts: 11
NC
Will32283 Offline OP
Will32283  Offline OP
Joined: Aug 2017
Posts: 11
NC
I know the OM calls for Honda Blue Type 2. Looking in my tank the coolant looks green. Is it safe to add the Honda Type 2 with the green that's already there or do I need to drain?

Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601250
12/12/17 07:23 AM
12/12/17 07:23 AM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
I'd do a coolant flush and new tstat. Get OEM for both.

Last edited by HoosierJeeper; 12/12/17 07:23 AM.

15 Jeep KL Limited V6: Formula Shell 5W20
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Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601260
12/12/17 07:52 AM
12/12/17 07:52 AM
Joined: Jan 2009
Posts: 282
San Diego, California
Jim_Truett Offline
Jim_Truett  Offline
Joined: Jan 2009
Posts: 282
San Diego, California
If it has green coolant in it, there is also a fair chance it has an aftermarket thermostat as well. I would replace it with an OEM unit and proper blue coolant after a flush. The ECT sensor can be removed and tested with a DMM and a pan of boiling water.


2008 F250 6.4 PowerStroke 43k
2005 Honda CR-V 193k
2005 Honda Pilot 235k
1963 Nova SS 84k
2015 Civic Si 23k
2013 Mahindra 3016HST 99hrs
Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601284
12/12/17 08:38 AM
12/12/17 08:38 AM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
FYI, Honda Type 2 used to be green.

Replace the thermostat, it is probably sticking, and only use OE. If there is any coolant in the overflow bottle, the level is fine.

Last edited by mightymousetech; 12/12/17 08:39 AM.

Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: P0128 - 2005 Accord LX 2.4l [Re: mightymousetech] #4601288
12/12/17 08:45 AM
12/12/17 08:45 AM
Joined: Mar 2008
Posts: 99
MB, Canada
propuckstopper Offline
propuckstopper  Offline
Joined: Mar 2008
Posts: 99
MB, Canada
Originally Posted By: mightymousetech
FYI, Honda Type 2 used to be green.

Replace the thermostat, it is probably sticking, and only use OE. If there is any coolant in the overflow bottle, the level is fine.


Certainly not arguing here, but when was Type 2 ever green? I have had my Honda since 2005, and never remember seeing anything but blue Honda coolant. In fact, I had not ever seen blue coolant before the acquisition of my Honda, so I found it a bit strange way back then.


1965 Pontiac GTO Tri-Power 4-Speed Hardtop (Montero Red)
1968 Pontiac GTO Covertible 400 H.O./Auto (Solar Red)
2000 Lexus ES300
2003 Honda Element AWD
Re: P0128 - 2005 Accord LX 2.4l [Re: mightymousetech] #4601291
12/12/17 08:53 AM
12/12/17 08:53 AM
Joined: Sep 2014
Posts: 1,446
Toronto Canada
WobblyElvis Offline
WobblyElvis  Offline
Joined: Sep 2014
Posts: 1,446
Toronto Canada
Originally Posted By: mightymousetech
Replace the thermostat, it is probably sticking, and only use OE. If there is any coolant in the overflow bottle, the level is fine.


I agree.

Re: P0128 - 2005 Accord LX 2.4l [Re: propuckstopper] #4601357
12/12/17 09:53 AM
12/12/17 09:53 AM
Joined: Apr 2003
Posts: 1,354
Nowhere NM
Smoky14 Offline
Smoky14  Offline
Joined: Apr 2003
Posts: 1,354
Nowhere NM
Originally Posted By: propuckstopper
Originally Posted By: mightymousetech
FYI, Honda Type 2 used to be green.

Replace the thermostat, it is probably sticking, and only use OE. If there is any coolant in the overflow bottle, the level is fine.


Certainly not arguing here, but when was Type 2 ever green? I have had my Honda since 2005, and never remember seeing anything but blue Honda coolant. In fact, I had not ever seen blue coolant before the acquisition of my Honda, so I found it a bit strange way back then.


It changed to blue in 2000 , approximately.

Smoky


99 Acura 2.3CL 5speed MT
12 Ford Fusion 2.5S 6speed MT
05 Suzuki Bandit 1200.
Re: P0128 - 2005 Accord LX 2.4l [Re: Smoky14] #4601415
12/12/17 10:24 AM
12/12/17 10:24 AM
Joined: Mar 2008
Posts: 99
MB, Canada
propuckstopper Offline
propuckstopper  Offline
Joined: Mar 2008
Posts: 99
MB, Canada
Originally Posted By: Smoky14
Originally Posted By: propuckstopper
Originally Posted By: mightymousetech
FYI, Honda Type 2 used to be green.

Replace the thermostat, it is probably sticking, and only use OE. If there is any coolant in the overflow bottle, the level is fine.


Certainly not arguing here, but when was Type 2 ever green? I have had my Honda since 2005, and never remember seeing anything but blue Honda coolant. In fact, I had not ever seen blue coolant before the acquisition of my Honda, so I found it a bit strange way back then.


It changed to blue in 2000 , approximately.

Smoky


That would make sense, then, as I only began with the Honda in 2005.


1965 Pontiac GTO Tri-Power 4-Speed Hardtop (Montero Red)
1968 Pontiac GTO Covertible 400 H.O./Auto (Solar Red)
2000 Lexus ES300
2003 Honda Element AWD
Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601430
12/12/17 10:36 AM
12/12/17 10:36 AM
Joined: Jul 2005
Posts: 11,309
NorthEast
Vikas Offline
Vikas  Offline
Joined: Jul 2005
Posts: 11,309
NorthEast
put an el cheapo scanner and get the engine coolant temperature. If it is not in 180F or higher, then obviously you need new thermostat.

Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601528
12/12/17 12:11 PM
12/12/17 12:11 PM
Joined: Aug 2004
Posts: 19,988
CA
The Critic Offline
The Critic  Offline
Joined: Aug 2004
Posts: 19,988
CA
Most likely needs a T-stat at that mileage. Get one from the dealer as well as the coolant. The thermostat is part of the plastic water outlet assembly; when you buy a new thermostat from the dealer, it comes preinstalled into the water outlet. They are around $50.


2011 Toyota Prius - 173k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 131K - Mobil 1 EP HM 5W-30
Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601727
12/12/17 03:15 PM
12/12/17 03:15 PM
Joined: Aug 2017
Posts: 11
NC
Will32283 Offline OP
Will32283  Offline OP
Joined: Aug 2017
Posts: 11
NC
Thanks all. I ordered the OEM T-stat and coolant.

Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601740
12/12/17 03:26 PM
12/12/17 03:26 PM
Joined: Sep 2007
Posts: 967
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 967
TX, USA
Bad T-stat. Happened in my previous Sienna.
Buy a Honda genuine T-stat and NOT the Stant or anything else.


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: P0128 - 2005 Accord LX 2.4l [Re: Will32283] #4601742
12/12/17 03:26 PM
12/12/17 03:26 PM
Joined: Jan 2008
Posts: 10,662
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,662
OH
Originally Posted By: Will32283
Thanks all. I ordered the OEM T-stat and coolant.


Good Man! thumbsup

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