Why does the engine over heat at idle speed?
Why does the engine over heat at idle speed?
If the thermostat is stuck partially open (like mine was), then there would not be enough water flow at idle speed to keep the engine cool, but there would be enough (depending on how open the thermostat was) when the boat is running at higher RPM’s. Well i just got back from changing the thermostat.
Why is my MerCruiser engine running too hot?
If you start your engine while sitting at the dock and you let the engine warm up and you notice that your temp steadily climbs and climbs, you might have a bad thermostat. Usually, when first started, it is a good idea to watch the gauges and monitor the temp. Watch the temp gauge as the engine warms up.
Why does my boat get cold at idle?
I bet you will find your elbows are cold to the touch. At idle the water pump is not working that hard. Once the throttle is raised, all the water can’t exit via the by-pass and is forced thru the small openings in the manifolds and therby allowing the block to cool.
What causes the idle speed to randomly fluctuate?
It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. The idle speed may be too high at one moment and then too low at other moments.
If the thermostat is stuck partially open (like mine was), then there would not be enough water flow at idle speed to keep the engine cool, but there would be enough (depending on how open the thermostat was) when the boat is running at higher RPM’s. Well i just got back from changing the thermostat.
Why is the RPM on my Harley Davidson so high?
(Could be you went through 50 key cycles with no engine issues) When you get off the interstate & the idle is high,,, if you were to power it off and restart the bike, does the idle calm down or does it resume the high idle. Would help to know how high the RPM was, but you have no tach. (?)
I bet you will find your elbows are cold to the touch. At idle the water pump is not working that hard. Once the throttle is raised, all the water can’t exit via the by-pass and is forced thru the small openings in the manifolds and therby allowing the block to cool.
What kind of car does not blow heat at idle?
Hi, I have the vehicle listed above it is the SEL model. It has 3.0 V^ Duratec engine. My problem is that car does not blow any heat at idle. Heat starts blowing only at higher rpm’s, I have changed coolant, thermostat, coolant reservoir and cap as well as flushed heater core which had no rust in it.
