SuperWade2 Posted October 23, 2008 Share Posted October 23, 2008 The fluid in my overflow tank for my cooling system was boiling/bubbling, rapidly... I could feel the hose (quickly) because it was boiling too... nothing overflowing or dripping anywhere, but I could tell the engine was REALLY hot (although not so much on the gauges or anything)... I drove it home from the Dentist (about 8 miles) on the Hwy, which is pretty rare since I usually just drive too and from work through town. Link to comment Share on other sites More sharing options...
Eagle Posted October 23, 2008 Share Posted October 23, 2008 It should not be boiling (bubbling). If it is, that means it's either a bunch hotter than it should be, or the cap isn't holding pressure. Remember, higher pressure raises the boiling point of a liquid. That's the whole reason for radiators to have pressure caps. Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 It should not be boiling (bubbling). If it is, that means it's either a bunch hotter than it should be, or the cap isn't holding pressure. Remember, higher pressure raises the boiling point of a liquid. That's the whole reason for radiators to have pressure caps. Was bubbling like a Hot Tub...and by the feel of the engine/hood a BUNCH hotter than I think it should have been... Any suggestions on where to start -> New Cap? T-Stat? Link to comment Share on other sites More sharing options...
jtdesigns Posted October 23, 2008 Share Posted October 23, 2008 oh I see you never come around any more unless you need HELP with something..... :roll: I kiddin... Is it the closed system or did you change your rad?? Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 oh I see you never come around any more unless you need HELP with something..... :roll: I kiddin... Is it the closed system or did you change your rad?? Stock closed system... ... & I'm more of a lurker... I watch what's going on... You get your woman into anther contest, and I'll go to TOWN! *** EDIT *** I've been home almost 90 minutes now and the engine is still hot enough to fry an egg and overflow tank is still "hissing" a little bit... tubes going out of right side of tank is still really Warm... *** EDIT *** Link to comment Share on other sites More sharing options...
Pete M Posted October 23, 2008 Share Posted October 23, 2008 If it's hissing, that likely means a leak. :( Try spraying some soapy water on the area. Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 If it's hissing, that likely means a leak. :( Try spraying some soapy water on the area. Well, not hissing now... can't take it for a spin to warm it back up since I got RugRat duty tonight... if it's a "leak", are we most likely talking just the cap, or the whole stinkin' bottle? (Where do I get either one of those other than a JY?) Link to comment Share on other sites More sharing options...
mvusse Posted October 23, 2008 Share Posted October 23, 2008 My bottle was cracked; the plastic seems to get a little brittle after 21 years. I ordered one of Ebay, and it's worked fine for me so far. Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 My bottle was cracked; the plastic seems to get a little brittle after 21 years. I ordered one of Ebay, and it's worked fine for me so far. Something like this? http://miniurl.org/ebay Link to comment Share on other sites More sharing options...
Eagle Posted October 23, 2008 Share Posted October 23, 2008 If it's hissing, that likely means a leak. :( Try spraying some soapy water on the area. Well, not hissing now... can't take it for a spin to warm it back up since I got RugRat duty tonight... if it's a "leak", are we most likely talking just the cap, or the whole stinkin' bottle? (Where do I get either one of those other than a JY?) You do NOT buy just a cap. Guaranteed to NOT seal on an old bottle. Quadratec used to sell the complete bottle and cap assembly for $19. Of course, that's for another plastic fantastic. I prefer the several all-metal solutions that have surfaced recently, despite their initial higher cost. Oops. It's up to $25 now. Not a surprise -- I haven't priced them for several years: http://www.quadratec.com/products/52449_1493.htm Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 If it's hissing, that likely means a leak. :( Try spraying some soapy water on the area. Well, not hissing now... can't take it for a spin to warm it back up since I got RugRat duty tonight... if it's a "leak", are we most likely talking just the cap, or the whole stinkin' bottle? (Where do I get either one of those other than a JY?) You do NOT buy just a cap. Guaranteed to NOT seal on an old bottle. Quadratec used to sell the complete bottle and cap assembly for $19. Of course, that's for another plastic fantastic. I prefer the several all-metal solutions that have surfaced recently, despite their initial higher cost. Oops. It's up to $25 now. Not a surprise -- I haven't priced them for several years: http://www.quadratec.com/products/52449_1493.htm Ouch $125 for Metal... If my OEM one went nearly 20 years, I think in today's economy I might take my chance on the $25 ones... http://www.macsradiator.com/replacmentj ... tanks.aspx Link to comment Share on other sites More sharing options...
WahooSteeler Posted October 23, 2008 Share Posted October 23, 2008 Wade, I had this same problem to a tee not too long ago. Two issues were identified: my coolant was too low. when cooled off, the puke tank was still empty. You've already said your fluid was bubbling away in there, so scratch that. Second issue: cap on puke tank, while it felt tight, was loose enough to hiss. I gently tightened it until hissing stopped. that alone brought my temp down a good bit, and i did this before i started adding coolant. Link to comment Share on other sites More sharing options...
PIKE Posted October 23, 2008 Share Posted October 23, 2008 My original plastic expansion bottle had a crack at the same height as the fill level post. My cap fit tight and the fluid was always at the proper level. It took me a long time to figure out what was wrong. I got a new bottle and cap at the dealer but the cap would not hold pressure. To fix it I put a hose clamp on the cap so I could tighten it more. Maybe the after market bottles are better than the ones that the dealers are selling. Good luck Link to comment Share on other sites More sharing options...
jtdesigns Posted October 23, 2008 Share Posted October 23, 2008 oh I see you never come around any more unless you need HELP with something..... :roll: I kiddin... Is it the closed system or did you change your rad?? Stock closed system... ... & I'm more of a lurker... I watch what's going on... You get your woman into anther contest, and I'll go to TOWN! *** EDIT *** I've been home almost 90 minutes now and the engine is still hot enough to fry an egg and overflow tank is still "hissing" a little bit... tubes going out of right side of tank is still really Warm... *** EDIT *** Touché....... First thing I'd do would be a good flush.. ( I know your in Cali, but winter is coming up you know) If it still overheats put a pressure tester on it, if don't detect any leaks get a tester from parts a place and make sure your not getting any exhaust gases in your cooling system. Then go from there. I'm not saying thats whats wrong, but those test are free I think. Couldnt hurt I guess.. Link to comment Share on other sites More sharing options...
MJchick Posted October 23, 2008 Share Posted October 23, 2008 I to had the same problem this past summer. after about two weeks like that it started blowing all the coolant out the cap. After I bought a new bottle and cap from chrysler, I found out it was because my electric fan wasn't working. a friend of mine got it working for me and I haven't had a problem since. Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 I to had the same problem this past summer. after about two weeks like that it started blowing all the coolant out the cap. After I bought a new bottle and cap from chrysler, I found out it was because my electric fan wasn't working. a friend of mine got it working for me and I haven't had a problem since. Thanks Guys... I think tomorrow I'll try to get it warmed up...check for leaks arround the bottle/cap area and that seems to be an easy cheap fix if that's it (and I get a good bottle)... I will check the fan as well.... Wade Link to comment Share on other sites More sharing options...
BLHTAZ Posted October 23, 2008 Share Posted October 23, 2008 Wade... I have a bottle & cap that were only used on my truck for about 4 months. I bought them at work then decided to do a conversion. I would be happy to ship them to you for $20. I will send them Priority Mail so you will get it in probably 3 days. :cheers: I am going out of town Friday afternoon and don't know if I will have Internet access or not while gone. If I don't hear from you before I leave, I will be back by Sunday night or Monday. Link to comment Share on other sites More sharing options...
mvusse Posted October 23, 2008 Share Posted October 23, 2008 My bottle was cracked; the plastic seems to get a little brittle after 21 years. I ordered one of Ebay, and it's worked fine for me so far. Something like this? http://miniurl.org/ebay That's the one! Link to comment Share on other sites More sharing options...
SuperWade2 Posted October 23, 2008 Author Share Posted October 23, 2008 Wade... I have a bottle & cap that were only used on my truck for about 4 months. I bought them at work then decided to do a conversion. I would be happy to ship them to you for $20. I will send them Priority Mail so you will get it in probably 3 days. :cheers: I am going out of town Friday afternoon and don't know if I will have Internet access or not while gone. If I don't hear from you before I leave, I will be back by Sunday night or Monday. Thanks for the offer Brent... I got antsy and ordered the $25 one from Fleabay last night before I went to sleep.. Link to comment Share on other sites More sharing options...
500 MJ Posted October 23, 2008 Share Posted October 23, 2008 One would think a skilled welder and a TIG machine could make one of these for less than $120... :eek: Link to comment Share on other sites More sharing options...
pingpong Posted October 27, 2008 Share Posted October 27, 2008 I experienced the same problem this weekend in the Turd while wheeling. :oops: I ended up blowing my headgasket at least, and maybe cracking the head :headpop: Link to comment Share on other sites More sharing options...
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