Search | Car Forums | Gallery | Articles | Helper | AF 350Z | IgorSushko.com | Corporate |
| Latest | 0 Rplys |
02-10-2011, 06:40 PM | #1 | |
AF Newbie
Join Date: Feb 2011
Location: Sheffield Lake, Ohio
Posts: 24
Thanks: 3
Thanked 0 Times in 0 Posts
|
code 128
Im spending to much time on this site!!!!!!! !Anyway, My 05 Envoy with a 4.2 L is throwing a code 128 temp below thermostat temp what do I do to solve this problem HELP PLEASE
|
|
02-10-2011, 08:00 PM | #2 | |
Advisor/Moderator
Join Date: Nov 2005
Location: Belleville, Michigan
Posts: 5,184
Thanks: 6
Thanked 103 Times in 95 Posts
|
Re: code 128
Check coolant level, then check the thermostat outlet housing with an infra red thermometer after driving for 20 minutes or so. Should be 195 degrees. If not, the thermostat needs to be replaced.
__________________
You have to know how it works, to figure out why it doesn't. |
|
02-11-2011, 08:12 AM | #3 | |
AF Newbie
Thread starter
Join Date: Feb 2011
Location: Sheffield Lake, Ohio
Posts: 24
Thanks: 3
Thanked 0 Times in 0 Posts
|
Re: code 128
Thanks for the info is the thermostat on the 4.2L on the upper hose on the passenger side or on the lower hose on the drivers side
|
|
02-11-2011, 07:03 PM | #4 | |
Advisor/Moderator
Join Date: Nov 2005
Location: Belleville, Michigan
Posts: 5,184
Thanks: 6
Thanked 103 Times in 95 Posts
|
Re: code 128
Driver side of engine, behind the alternator.
__________________
You have to know how it works, to figure out why it doesn't. |
|
02-12-2011, 03:19 PM | #5 | |
AF Newbie
Thread starter
Join Date: Feb 2011
Location: Sheffield Lake, Ohio
Posts: 24
Thanks: 3
Thanked 0 Times in 0 Posts
|
Re: code 128
Thanks found it and replaced it and also found my noise. the guy I bought it from sprayed the belt and pullys with either lithium grease or belt dressing to find out what was making the noise and I checked all the pullys and it turned out to be the belt after pulling the tension pully off several times I finally went and got a new belt...Live and learn anyway thanks for your help
|
|
02-12-2011, 06:46 PM | #6 | |
Advisor/Moderator
Join Date: Nov 2005
Location: Belleville, Michigan
Posts: 5,184
Thanks: 6
Thanked 103 Times in 95 Posts
|
Re: code 128
The only "fix" for a noisy serpentine belt is make sure the pulleys are lined up perfectly with each other and replace the belt. Did your P0128 go away?
__________________
You have to know how it works, to figure out why it doesn't. |
|
The Following User Says Thank You to old_master For This Useful Post: |
smitty782 (02-15-2011)
|
02-15-2011, 01:13 PM | #7 | |
AF Newbie
Thread starter
Join Date: Feb 2011
Location: Sheffield Lake, Ohio
Posts: 24
Thanks: 3
Thanked 0 Times in 0 Posts
|
Re: code 128
Yes code went away after i replaced the thermostat cleaned all pulleys and replaced belt and the noise went away All good for now thanks for your help..Ken
|
|
07-16-2014, 09:52 PM | #8 | |
AF Newbie
Join Date: Jul 2014
Location: orange, California
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
|
Re: code 128
"Im spending to much time on this site!!!!!!! !Anyway, My 05 Envoy with a 4.2 L is throwing a code 128 temp below thermostat temp what do I do to solve this problem HELP PLEASE"
Same issue here!!! Why? |
|
07-16-2014, 09:54 PM | #9 | |
Advisor/Moderator
Join Date: Nov 2005
Location: Belleville, Michigan
Posts: 5,184
Thanks: 6
Thanked 103 Times in 95 Posts
|
Re: code 128
See post #2 above.
__________________
You have to know how it works, to figure out why it doesn't. |
|
|
POST REPLY TO THIS THREAD |
Thread Tools | |
|
|