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Sutty

98 GMC K-1500 Temp is fluctuating

16 posts in this topic

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

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

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Did mine last week. It took about 15 minutes

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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

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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

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

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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.

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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!!

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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.

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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....

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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.

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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

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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

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

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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

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

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  • Posts

    • Consider me in on a personal boycott of The Landing. Horrible horrible horrible customer service skills by the owners/management.

      1) it is much quieter on the water without the big blasters running up an down the lake from the Landing.

      2) Had a craving for wings while out fishing one night. Called ahead ordered up some wings- great taste- tiny crappy wings. Asked for a side of Blue Cheese and Celery - upcharge of like $3.00 for those. Washed it down with a bottle of Coors Light. $23.50

      Large group went in one night and they usually tear up the bar. Were told they can't play jukebox until after 10 pm it was 9:40 PM- ONLY GROUP IN THE BAR.  "They are trying to build up an Ambiance"

      Got their bar tab and they were done. Yearly group that dropped a lot of cash in the past. Never again until new ownership is on board.

      Unfortunately they have deep pockets.

      As soon as new ownership / management takes over the crowds will return.

    • Big V Bobcat

      Posted (edited)

      That place is sinking faster than a boat anchor! I couldn't figure out why they were putting in so much money into it, especially since every time I'd drive by at dinner hour, there'd be at best 5 cars parked there. Always a good crowd at the Crescent of course. I don't mind the lack of view...since I'm usually on the lake most of the day already. I remember the days of Judd and Jack, and the place was lively and included the locals. Now it is mostly oblivious resort guests who see it as the only option. Very "pretentious" place that would be better suited in the Brainerd lakes area. My wife's co-worker told her that he was there this summer and they charged him $2 for a glass of water and .75 for mustard (in a stainless steel cup of course). I'd like to check out Wolf Bay, but I need a faster boat first! Don't even get me started on the $7 beers....

      Edited by Big V Bobcat
    • OhioVike

      Posted

      My entire family loves coming up to the lake. We make it part of the routine to stop at the landing at least once per trip.  At the end of the day a few extra bucks per entree is no big deal. Our meals have always been good, service has varied with the crowds which is true everywhere up there.  Run the per pound cost on your walleye catch. The few meals a year you eat there would pale in comparison.  I hope they stay open, it is a fun part of our trips!

    • FrazerBay

      Posted

      Have to agree..food is great..best place in the winter on snowmobile..

      but..the dock situation could use a big upgrade.

      1 person likes this
    • LakeofthewoodsMN

      Posted

      Walleyes and Saugers continue to move closer to the south shore. Good fishing in 23 feet of water outside the Lighthouse gap and all along the south shore. Shiner minnows in the area keeping large schools of walleyes active! The bite will continue to improve in the coming weeks. Anchoring and jigging with a shiner minnow successful with gold or pink/gold the colors of choice. Some crankbait action in the afternoons to cover water to find active schools. Lots of ducks and geese in the area as local waterfowl still around. Should expect a good northern push in a few weeks as it gets colder.

      The Rainy River continues to get better each day as more shiners and walleyes push into the river. Fall walleye fishing on the Rainy River can be some of the best! Sturgeon are being boated up and down the river daily. 

      Up at the Northwest Angle, walleye and sauger action is hot. Drifting with a bottom bouncer, spinner, and a minnow doing great. Anchoring and jigging with a minnows doing good as well. Look for deep holes and mud areas in 18-30 feet between Oak and Flag Island. Also look for points with depths of 8-18 feet as shiners have started moving into bays. On the Ontario side, walleye fishing is red hot as the feed bags are on to bulk up for the winter. Use electronics to locate schools of fish in 18 to 28 feet and use a jig and minnow. Bottom bouncers with spinners can be used to cover water to locate fish. Crappies over 15 inches are stacked up in sharp drop offs and around flooded timber in 30 feet. Muskie action has turned to trolling large minnow baits in 10-18 feet. Plenty of waterfowl in area with local birds still around.

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      Posted

      People are getting smarter.

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      Posted

      Northern Minnesotans are strong supports of the SS rule. Shoot and shut up.

    • Cliff Wagenbach

      Posted

      I have never had a bad meal at the Vermilion Club!

      Great pizzas, wings, steaks, etc.!

      Cliff

      1 person likes this
    • Capt. Quicksteel

      Posted

      This thread makes me glad I'm on the east end!!  :)  Nobody has mentioned the Vermilion Club. Not fancy but we always enjoy the pizza etc

    • Great report.  I will be fishing Fri, Sat, Sun with high school buds and we are looking forward to good fishing and good catching!!!



  • Posts

    • Sorgy
      Consider me in on a personal boycott of The Landing. Horrible horrible horrible customer service skills by the owners/management. 1) it is much quieter on the water without the big blasters running up an down the lake from the Landing. 2) Had a craving for wings while out fishing one night. Called ahead ordered up some wings- great taste- tiny crappy wings. Asked for a side of Blue Cheese and Celery - upcharge of like $3.00 for those. Washed it down with a bottle of Coors Light. $23.50 Large group went in one night and they usually tear up the bar. Were told they can't play jukebox until after 10 pm it was 9:40 PM- ONLY GROUP IN THE BAR.  "They are trying to build up an Ambiance" Got their bar tab and they were done. Yearly group that dropped a lot of cash in the past. Never again until new ownership is on board. Unfortunately they have deep pockets. As soon as new ownership / management takes over the crowds will return.
    • Big V Bobcat
      That place is sinking faster than a boat anchor! I couldn't figure out why they were putting in so much money into it, especially since every time I'd drive by at dinner hour, there'd be at best 5 cars parked there. Always a good crowd at the Crescent of course. I don't mind the lack of view...since I'm usually on the lake most of the day already. I remember the days of Judd and Jack, and the place was lively and included the locals. Now it is mostly oblivious resort guests who see it as the only option. Very "pretentious" place that would be better suited in the Brainerd lakes area. My wife's co-worker told her that he was there this summer and they charged him $2 for a glass of water and .75 for mustard (in a stainless steel cup of course). I'd like to check out Wolf Bay, but I need a faster boat first! Don't even get me started on the $7 beers....
    • OhioVike
      My entire family loves coming up to the lake. We make it part of the routine to stop at the landing at least once per trip.  At the end of the day a few extra bucks per entree is no big deal. Our meals have always been good, service has varied with the crowds which is true everywhere up there.  Run the per pound cost on your walleye catch. The few meals a year you eat there would pale in comparison.  I hope they stay open, it is a fun part of our trips!
    • FrazerBay
      Have to agree..food is great..best place in the winter on snowmobile.. but..the dock situation could use a big upgrade.
    • LakeofthewoodsMN
      Walleyes and Saugers continue to move closer to the south shore. Good fishing in 23 feet of water outside the Lighthouse gap and all along the south shore. Shiner minnows in the area keeping large schools of walleyes active! The bite will continue to improve in the coming weeks. Anchoring and jigging with a shiner minnow successful with gold or pink/gold the colors of choice. Some crankbait action in the afternoons to cover water to find active schools. Lots of ducks and geese in the area as local waterfowl still around. Should expect a good northern push in a few weeks as it gets colder. The Rainy River continues to get better each day as more shiners and walleyes push into the river. Fall walleye fishing on the Rainy River can be some of the best! Sturgeon are being boated up and down the river daily.  Up at the Northwest Angle, walleye and sauger action is hot. Drifting with a bottom bouncer, spinner, and a minnow doing great. Anchoring and jigging with a minnows doing good as well. Look for deep holes and mud areas in 18-30 feet between Oak and Flag Island. Also look for points with depths of 8-18 feet as shiners have started moving into bays. On the Ontario side, walleye fishing is red hot as the feed bags are on to bulk up for the winter. Use electronics to locate schools of fish in 18 to 28 feet and use a jig and minnow. Bottom bouncers with spinners can be used to cover water to locate fish. Crappies over 15 inches are stacked up in sharp drop offs and around flooded timber in 30 feet. Muskie action has turned to trolling large minnow baits in 10-18 feet. Plenty of waterfowl in area with local birds still around.