Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

  • Announcements

    • Rick

      Fishing Report Clubs - LIMITED MEMBERSHIP - Join Today - FREE   01/24/2018

      Fishing Minnesota had added a new menu item (see above) called Fishing Report Clubs. It's a way to keep the really good fishing reports coming and being shared only with those who also provide detailed fishing reports. We will only approve new members who request to join if they have already posted a recent fishing report in the area forum, associated with the Fishing Report Club area  you want to join. We are going to limit the number of regular memberships, in the Fishing Report Clubs, to the top 20  members in each Club, to those with the best frequency and quality fishing reports provided in the club and less so in the regular fishing report forum open to all members. The higher quality fishing report reserved for the club of course. If  you want fishing reports  around your area, I would Join Now, some of the clubs are starting to fill fast. Use the Fishing Reports Club link in the Menu above (after you've posted a fishing report in the regular area forum) and request to Join.
  • RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE

    You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

  • 0
Sign in to follow this  
Sutty

98 GMC K-1500 Temp is fluctuating

Question

Sutty

I am going to throw in a new thermostat. I haven't put one in my truck before. Assuming I follow the big coolent hose to find it am I right?

Thanks

Share this post


Link to post
Share on other sites

15 answers to this question

Recommended Posts

  • 0
Valv

Yes Sir, follow the big top radiator hose. Usually on Chevy trucks is a very simple operation.

Share this post


Link to post
Share on other sites
  • 0
gunflint

Did mine last week. It took about 15 minutes

Share this post


Link to post
Share on other sites
  • 0
upnorth

Just be sure to make sure the surfaces are real clean when you put things back together. Otherwise gaskets fail at the most un opportune time blush.gif

Share this post


Link to post
Share on other sites
  • 0
ccarlson

You'll want to suck out some of the coolant with a turkey baster or something before you take off the old thermostat. Otherwise you take off the old thermostat and coolant goes all over since the thermostat is just a bit lower than the top level of the radiator. Squeeze the main hose going to the theromstat to get the coolant out of it too.

Use a clean plastic jug to keep the coolant in and then you can put it back in when done. I suppose you could just drain part of the radiator but sometimes that isn't convenient to get to without making a mess either.

ccarlson

Share this post


Link to post
Share on other sites
  • 0
Sutty

Thanks for the tips. I need to get r done before deer camp opens...

Share this post


Link to post
Share on other sites
  • 0
gunflint

Be carefull. I forgot to mention that after I changed the thermostat, I put about 30 gallons of fuel in and put the new 07 tags on. Then on the way to town the tranny went. You just know that this is all related.

Share this post


Link to post
Share on other sites
  • 0
Jeremy airjer W

Are you sure its just not low on coolant. I would check around the intake usually right where it meets the head. These are real common gaskets to leak. Also there is a quick connect fitting on the passenger side of the motor (if I remember Right) these are prone to cracking and leaking.

Then again it could just be the thermostat. Tyoically they just stick shut or open thats the only reason I questioned it.

Also If the vehicle still has dexcool (GM exteneded life coolant) now would be a good time to flush it out. Especially if the vehicle has been run low on coolant or if the vehicle is nearing the expected life of the coolant. These systems can be converted to the regular (green) coolant to save you a few bucks and with out any ill effects (would highly reccomend using a flush machine to do the conversion, Dexcool and regular coolant DO NOT mix well!!!)

Have fun Sutty!!

Share this post


Link to post
Share on other sites
  • 0
Sutty

I had it flushed twice last year with the green stuff in. First time it didn't seem to clean it all out ended up with some brownish colored coolant. It has stayed green this time... It is a little low right now. I checked it after a twenty minute drive and it is about at the cold level in the resevoir.

Share this post


Link to post
Share on other sites
  • 0
Sutty

I brought it in yesturday and had it pressure tested. They didn't find any leaks, they suggested bringing it in cold next time maybe it will show than. I didn't do the thermostat yesturday since I was sitting in the shop. Going to put it in today in the daylight. Probably lose all my coolant on the way to ortonville tonight....

Share this post


Link to post
Share on other sites
  • 0
sparkyaber

what Airjer said, my '98 with 140000 started to fluctuate badly, check coolant, a little low, checking around under the hood an noticed a little coolant around that intake on the passenger side, grabbed the hose, and boom! that fitting disintigrated. Of course under pressure. Very bad design. It took many hours to remove all of the pieces of thread left in the block. Fun times.

Share this post


Link to post
Share on other sites
  • 0
FISHINGFARMER

Also check and make sure the sending unit wire isn't exposed to a warm part on the motor. Had that happen one time also, was resting to close to the motor making the temp guage act up. More than likely it's just needing a new thermostat.

Good luck in your repair.

Farmer

Share this post


Link to post
Share on other sites
  • 0
Jeremy airjer W

sparkyaber, they make a tool for removing those broken of ends. I believe its made by lisle. Costs about $8 and saves about an hour and a ton of grief.

If only you knew then what you know now!! grin.gif

Share this post


Link to post
Share on other sites
  • 0
sparkyaber

Now you tell me smile.gif. Wish Toyota made an extended cab long box....... wink.gif

Share this post


Link to post
Share on other sites
  • 0
Sutty

Thanks for the tips. So far it is holding steady. I replaced the thermostat last friday (three trips to the parts store....) The guy had a pretty good laugh at me. 1st trip was for the thermostat second trip was for a deep socket my deep sockets were not quite long enough to grab the nuts... than the third trip was to get a smaller socket I thought I needed a 9/16 and it was 1/2

Share this post


Link to post
Share on other sites
  • 0
Jeremy airjer W

Sutty, I think those are metric bolts - 13mm I believe. smirk.gif

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  



  • Your Responses - Share & Have Fun :)

    • JBMasterAngler
      Tried South Lindstrom today. Was able to mark some fish, but they were tight to the bottom, and would not move! Got 1 tiny perch. Was only out for a little bit, then the snow really started coming down. Talked to someone else, and they had the exact same results.
    • monstermoose78
      I have two boss toms at my dads and I think a strutter might be the ticket
    • IceHawk
      I'm really leaning to buying a mojo scoot and shoot amd trying that this year talk about a adrenaline rush. 
    • IceHawk
      I've used a full body full strut before can be good or bad depending on a birds mood at the time. In certain situations they can be a killer, 
    • Wanderer
    • Wanderer
      Shiners and suckers not needed for us this weekend.  The better pike were sucking down my wife’s crappie minnows on a demon in 20 feet.    
    • monstermoose78
      I have 3 avian x hens two feeders and one head up. I gave semi strut Jake as well.  I want to get a full strut
    • jlang_04
      Hey relax, I haven't been out since that weekend. With an 11 months old at home, fishing gets put to a halt quickly! I've been following the threads as much as I can. I know guys are catching crappies in the deeper water still, basins with the chance to go up to shallow. French is usually good for that but have heard Roberd's has come in late. Two weeks ago there were ice castle's everywhere and we were drilling to the end of the auger. I like Cedar too near Faribault because it's an easy access and typically holds fish. You'll have to let me know where you go and how you do! Fish on!  
    • IceHawk
      Have to Agree moose the turkeys are becoming a little smarter each year. Better decoys have definitely upped my odds last few years. Seriously considering those Dave smiths or some Avian X.  Moose what are you using for a setup combo with those Avians? My customs look nice but always looking for something better 
    • sunniewally
      Watching fish on the camera is really fun> One day a musky was being a real pia!  But it was fun watching him. Some days it's around some days not. today I saw him only once.  You sure can learn alot on what it looks like on your depth finder and how the fish are reacting to the different techniques a guy uses!  Have fun, good fishing!
  • Share & Have Fun