Jump to content

Cracked temp sensor housing on 97 gmc 5.7 l

97aquagmc

Recommended Posts

97aquagmc New Member

97aquagmc

Posted
Posted

I just did a complete tune up on my 97 gmc , because it had started to run rough when ever I came to a stop so I changed out the cap/rotor/plugs/plug wires/egr valve/ maf/ and airfilter , but it was still running rough when ever I came to a stop . so I figured might a s well change temp sensor next to thermostat housing which seem pretty straight forward ., but alas that was not the case, the old one came out no problem but when I put the new one in I apparently must have tightened it too much although the base of the sensor is not even touching the housing, it has cracked the housing. so now I need a little advise . if and only if I haven't managed to crack the housing all the way around to the bottom side of the housing and its only cracked at the threads is it possible to apply some JB weld or even high temp thread lock to seal the crack on the threads of the housing or should I just change the intake and be done with it . any help with this would be appreciated thanx !!

Duelin Enthusiast

Duelin

Posted
Posted

I just did a complete tune up on my 97 gmc , because it had started to run rough when ever I came to a stop so I changed out the cap/rotor/plugs/plug wires/egr valve/ maf/ and airfilter , but it was still running rough when ever I came to a stop . so I figured might a s well change temp sensor next to thermostat housing which seem pretty straight forward ., but alas that was not the case, the old one came out no problem but when I put the new one in I apparently must have tightened it too much although the base of the sensor is not even touching the housing, it has cracked the housing. so now I need a little advise . if and only if I haven't managed to crack the housing all the way around to the bottom side of the housing and its only cracked at the threads is it possible to apply some JB weld or even high temp thread lock to seal the crack on the threads of the housing or should I just change the intake and be done with it . any help with this would be appreciated thanx !!

 

+1 on a new one. Also the base of the sensor is not suppose to touch. Those sensors have tapered thread and the thread make the seal. The more you tighten them the tighter the thread get and form the seal.

97aquagmc New Member

97aquagmc

Posted
  • Author
Posted

thanx for all the replys and your right I did not look close enough the sensor does have a tapered thread when I first looked at it I thought it was just straight bore but it does taper off ,my bad for not looking closer. again thanx for the help. I have decided to give threadlock a try as I only cracked the first 4 threads down so here is hoping it works if not really nothing to lose at this point. will report back if it was successful or not . HAVE A GOOD ONE !!

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      Grumpy Bears 2015 Silverado 2WD

      By Grumpy Bear · Posted

      Notes 7/18/2026   3,400 miles on this batch of Mobil 1 Euro 5W40 since the GDI pump replacement. Alcohol runs very clean when ring seal is tight and the sump isn't getting hosed with fuel. Checked oil level at fill up today as is my practice and grabbed a white Kleenex to look at the color. What color?  I was going to change it but.....  
    • Another JR
      2 speed transfer case optional now?

      By Another JR · Posted

      4 low is really nice on steep boat ramps. 
    • Chuck FB
      Gas Prices

      By Chuck FB · Posted

      Interesting, I suspect I would have fueled up in Lee Vining as the day prior I would have filled up either in Laughlin or near there and maybe again before I entered Death Valley and once out the other side late that evening as I kept on driving into the night up near Lee Vining. Next morning I most likely fueled up in LV before heading over Tioga Pass into ( as I refer to it as "Yose .... Mite" 😁 ). And again that was 19 years ago but the price then must not have jumped out at me like the 5 bill a gallon theme of nutty cult hippy country Big Sir or head so far up their rear Aspen. I'd be curious to know where the highest prices are in the lower 48, I probably would not be far off to guess somewhere in Cali forn ie. Coldfoot and Prudhoe bay may have those prices beat but that is a whole other world up there and when prices are more normal elsewhere that is about what they can be up there I believe in no mans land. Anyway interesting that the 395 corridor is hosing people and the thing is, its tourist season and its not like there are a lot of competition options when driving up that highway from what I could see. Yup, big ole Boaterhomes and various other RV's ahead and behind me at the Yosemite entrance gate and they have to get their fuel somewhere.  
    • Atlas
      Gas Prices

      By Atlas · Posted

      Those can be high, as well as the big California cities. The ones that will pop your eyes out are the 395 corridor on the Eastern side of the Sierra Nevadas. Lee Vining, $7.19 for regular and $8.89 for diesel is what the Google said right now.
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Correct.  2019-2021 model years are serviced by a different p/n.  19420611.  Recall 2021s use 19420611.   The recall engines 2022-2024 model years are serviced with 12740076.     The difference between 19420611 and 12740076 is GM changed injector size for 2022.  The injectors are smaller on 12740076 with smaller injector bores in the cylinder heads to match the smaller injectors.  So you can't install a 19420611 in a 2022-2024, and you can't install a 12740076 in a 2019-2021.     Both engines are the replacement engine p/ns that are in the L87 recall.  So both of these are the updated engines.     Here's a version of the L87 recall with the p/ns for all the parts needed.    RCRIT-25V274-7075.pdf   Note it shows 19420611 and 12740076 with an asterisk to a footnote "Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which part to order if two or more part numbers are listed for the same part, as it may vary by vehicle options."    

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...