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Old 01-17-2011, 01:35 PM
XhailGC XhailGC is offline
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Default 99 Ranger V6 Flex Fuel overheating - Long read!

I was hoping the experts here could give me some advice. I am ultimately thinking Head Gasket. But, I have some weird things happening.

My problems started summer of 2010. I was pulling my sea-doo boat to the lake and just before I got to the exit, my oil pressure dropped and my engine started rattling and I lost power. Next, the engine overheated. I pulled over immediately. My check engine light came on and I had the truck scanned. The error code was cylinder 2 and 5 misfire, and a bad 02 sensor. The sensor was on the passenger side post exhaust.

So, I replaced the sensor and the error code went away. The truck ran fine for a while. The next problem started a few weeks later. The truck started overheating at different times. I could hear water backing up into the overflow when the engine was turned off. I automatically said ok, it's the head gasket.

I checked the oil and there was no water in it. I've never replaced the PCV valve and I know that doesn't help matters.

To remedy the overheating problem, I changed the thermostat because the truck would over heat then it would go from hot straight to cold. The thermostat was stuck open. So, I changed the thermostat and the truck seemed to run fine for a few hours. Next, the overheating started again. So, I drained all of the antifreeze and refiled as instructed. Next, my serpentine belt started squealing really bad. It had 0 moisture on it. I noticed a slight wobble with the top idler pulley and I started thinking maybe it was one of the pulleys or the water pump.

Long story short. When I crank the truck up and let it idle for any amount of time it does not overheat. When I drive down the road it is fine. When I get on the gas, the temp will jump from cold to normal. Next, it will go from normal to almost hot. Here is the magical part **** When the temperature gauge gets almost to the H mark, I can slam on the breaks and the temp will go straight back to normal.... I just dont get it.


I initially thought head gasket, next I thought about the thermostat, radiator cap, antifreeze, flaky water pump.... I am just at a loss... Could it be the fan clutch? I know in the past when I would crank up my truck the fan would be really loud at first and now it just sounds normal.


Yesterday, I put some sea foam in the oil and cranked the truck up. after 30 seconds, I heard a nasty sounding lifter or rocker arm ticking noise. It went from soft to loud. After a few seconds, it would go away. It did this three or four times and now the engine is running like a charm. I assume the overheating will persist after the sea foam was added.


Sorry for the long read. I figured more details would help. If anyone could give some insight, I would greatly appreciate it.

Last edited by XhailGC; 01-17-2011 at 01:36 PM. Reason: spelling
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  #2  
Old 04-10-2012, 11:16 PM
hoerth hoerth is offline
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Default Re: 99 Ranger V6 Flex Fuel overheating - Long read!

ever have any resolution to this? I've been experiencing some similar things. Just replaced thermostat after swapping out water pump and radiator. Thermostat looked bad so I'm hoping that will be the solution. Way it's been going though, I'm more than half expecting there will still be a problem.
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Old 04-11-2012, 07:19 AM
jamesmbarkerjr jamesmbarkerjr is offline
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Default

I had something similar happen and I ended up blowing my head gaskets and lower intake. Plus my heads were warped. But who knows all cars are different.good luck
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Old 04-11-2012, 10:08 PM
hoerth hoerth is offline
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Default Re: 99 Ranger V6 Flex Fuel overheating - Long read!

Yeah, since my first post in this thread, things got worse with white clouds of smoke from the exhaust and water, too. So it's looking like head gaskets at minimum. I've gotten by on the cheap replacing things the past year but this one puts me in the "is it worth it?" position. As one forum member notes, its still cheaper than a car payment. Depends what else is going to go wrong and how long til it does.
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