Parts that seem to be falure prone

[WyrTwister]

Let's see . I read the thermostat and the rubber hose from the air filter box to the throttle body are both common parts falures . And maybe at moderate mileage ?

My Sonic is a 2015 1.8l . I found a thermostat for a 2013 oe 2014 on the web . Not ( yet ? ) one for 2015 .

Have not found the air hose ? Is the GM part all that is available ? Nothing from Gates or Deeco ?

Thanks ,
Wyr
God Bless

 

[Sonic Matt]

From what I've heard the thermostat only went bad on the 2012's because they were made of plastic. not sure about the rubber hose for the intake but I'm at 35k and no problems.

 

[WyrTwister]

The thermostat I found on the O'Reilly web site was metal .

Still do not know any more about the rubber " air hose " .

God bless
Wyr

God bless
Wyr

 

[Sonic Matt]

yeah they changed to metal in 2013 I believe because of all the failures.

 

[rojoes]

http://www.sonicownersforum.com/for...7-1-8-litre-thermostats-2-different-ones.html

I own a 2013 Sonic LT with a American made 1.8. Just for curiosity I looked up a replacement thermostat at NAPA.com. What I found was 2 completely different ones possible.

A plastic one http://www.napaonline.com/Catalog/C...ed-Thermostat-Housing/_/R-NBG34709_0498550915
Part Number: NBH 34709
Attributes:
Number of Bolt Holes : 3
Outlet I.D. : .579", 1.233"
Outlet O.D. : .972", 1.512"
Thermostat Temp Rating : 221 Deg

A metal one http://www.napaonline.com/Catalog/C...ed-Thermostat-Housing/_/R-NBG34710_0498550914
Part Number: NBH 34710
Attributes:
Number of Bolt Holes : 4
Outlet I.D. : 1.129"
Outlet O.D. : 1.335"
Thermostat Temp Rating : 221 Deg

Two completely different parts!!! Could the country of the engines origin be they key? I know they are made in USA, Korea and Hungary. One has 3 bolt holes and one has 4, also note the different shapes on mounting sides.

I looked my engine (USA made) and it was the plastic one with 3 bolts.

 

[droiTURK182]

If you ever change your air filter make sure to check your air intake hose, put a k&n air filter in mine and the air intake hose ripped apart and caused the check engine light to come on. it rips real easy if it been on the car for along time because the heat from the engine makes it brittle which rips in between the ribs of the hose. Bought a new one at the dealer for under 40 dollars and installed it myself, good air intake now and no more check engine light.

 

[systemSonic]

It wasn't only the 2012's that had the plastic thermostat housings. I believe some of the early production 13's came with the plastic housings because i have a 13 Lt 1.8 and i recently had the aluminum housing put in due to the plastic one warping. Luckily it was covered under warranty :banana:

 

[Sonic Matt]

ahhhhh makes sense I have a late production 13 and have the aluminum.