Engine off - temp sky rockets
02-19-2012, 02:42 AM
#21
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The temp overshoot only happens if you have your heater on. It's because of the way the piping is designed and how the return from the heater core is attached. Just in case you have a different perception on the actual issue.
If you have to turn the heater on to eliminate the problem, then the overshoot isn't what's causing it.
If you have to turn the heater on to eliminate the problem, then the overshoot isn't what's causing it.
What I'm tryin to fix now is simply overheating in stop and go traffic, and what is apparently referred to as "heat soak".
Oooh! I almost forgot to mention, I tried feeling the radiator hoses by squeezing them when my engine was overheating and the were squishy not hard with built up pressure like I expected. That's not normal right? Bottom hose is new, and both look ok.
02-19-2012, 03:00 AM
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I have found over the years that there are a lot of bad thermostats. I have also found that getting a "good" one is a hit or miss affair. I used to replace them every year just before it got cold because they stuck open and I had no heat for winter. I knew they were bad because the engine never got warm in the summer. I think I went through a dozen 'stant' brand units before I found one that actually works like its supposed to. It stays closed a little on the long side so the engine gets hotter but then you can see the gauge drop and know it opened and I have not had a problem with it so far.
Thermostats are cheap, keep a spare & replace whenever.
Thermostats are cheap, keep a spare & replace whenever.
05-31-2012, 11:06 PM
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FOLLOW UP: I know I know, it's been long since but I figure I hate it when people don't follow up with whatever the solution ended up being so this is for anyone who is searching with the same problem. skypilot was right. it was just a faulty t-stat. friggin pos caused me all that. popped a new one in which took all of 2 minutes (literally an over exaggeration) and presto. purring like a kitten again.
06-01-2012, 05:35 AM
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Actually it should have a little resistance when it's cold. And it should sound like a plane when it first starts. If it doesn't there is no resistance in it enough once it reaches op temp that the clutch doesn't engage.
That's the funny thing with these clutches if it's bone cold it's enough to actually engage the clutch for a very short period of time.
That's the funny thing with these clutches if it's bone cold it's enough to actually engage the clutch for a very short period of time.
FOLLOW UP: I know I know, it's been long since but I figure I hate it when people don't follow up with whatever the solution ended up being so this is for anyone who is searching with the same problem. skypilot was right. it was just a faulty t-stat. friggin pos caused me all that. popped a new one in which took all of 2 minutes (literally an over exaggeration) and presto. purring like a kitten again.
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