Water Pump Problems?
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Originally Posted by vze2sgxa
Ahh, yes! Yet another example of the 'wisdom' of sucking seafoam through a vacuum line directly into the crankcase. The solvent probably dislodged something and slammed it directly into the O2 sensor ... IMO, running seafoam in your crankcase is like pulling the oil drain plug with the engine running. You might want to change your oil with a Ford recommended grade, perhaps the 5W-20, and do it like yesterday.
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Originally Posted by sbclemens
I'll collect a sample of the coolant. I take it the local parts store won't have the facilities to test it. I'm not sure who would be able to test the fluid any ideas? After running the engine with the resevoir cap on, there is a lot of foam present. I though the foam was caused by an air leak but it could as well be caused by the exhaust entering the coolant system.
The O2 sensor is the front one on the driver's side. The problem started when I ran Seafoam through the vacuum line to see if that would clear up the hesitation I was experiencing. The code was/is P0133 which is a slow sensor. But, it would reset itself after driving awhile and stay off for a couple of days. Now that the head or head gasket seems a likely candidate along with the loss of coolant, it seems likely that the hesitation is due to coolant getting into the combustion chamber and causing poor ignition. So that would cause unburned fuel/coolant to posion the O2 sensor. Make sense? Or am I reaching?
The O2 sensor is the front one on the driver's side. The problem started when I ran Seafoam through the vacuum line to see if that would clear up the hesitation I was experiencing. The code was/is P0133 which is a slow sensor. But, it would reset itself after driving awhile and stay off for a couple of days. Now that the head or head gasket seems a likely candidate along with the loss of coolant, it seems likely that the hesitation is due to coolant getting into the combustion chamber and causing poor ignition. So that would cause unburned fuel/coolant to posion the O2 sensor. Make sense? Or am I reaching?
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From: Where the war is...
Originally Posted by sbclemens
I also poored the remainder of the Seafoam into the crankcase then ran the engine for 500 miles. When I changed the oil, a lot of the engine gunk came out with it. I don't feel that the Seafoam killed my O2 sensor. The sensor was already weaken by the problem I may have with the head and/or gasket. If it was the Seafoam, I would have lost the left bank sensor also.
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From: MA
Guys, NEVER , NEVER put Cardboard in front of a radiator to achieve faster warmup. The surface area of the cardboard could create enough force when driving at 30-60 mph to break solder joints between the radiator and mounting brackets and cause the radiator to be pushed into the cooling fan. This happened to me when I was about 16 years old with my first car. I lucked out and found a good used radiator for $20. I am in my 50's today and I will never forget the sound of the radiator hitting the fan. As soon as I heard that sound I knew exactly whatt the problem was.
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Originally Posted by vze2sgxa
You ran the engine for 500 miles with an engine oil dilution product in it? Is that correct?
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Originally Posted by madsonp
Did you get your compression test done ? 
Cylinder 1 2 3 4 5 6 7 8
Pressure 177 197 195 202 210 200 200 200
Plugs were all dry. Still think its the head/gaskets?
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From: Billings, Montana
Originally Posted by 98expeditionXLT
Guys, NEVER , NEVER put Cardboard in front of a radiator to achieve faster warmup. The surface area of the cardboard could create enough force when driving at 30-60 mph to break solder joints between the radiator and mounting brackets and cause the radiator to be pushed into the cooling fan. This happened to me when I was about 16 years old with my first car. I lucked out and found a good used radiator for $20. I am in my 50's today and I will never forget the sound of the radiator hitting the fan. As soon as I heard that sound I knew exactly whatt the problem was.
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From: Billings, Montana
Originally Posted by sbclemens
I finally got done with the compression test (I hate the #7 COP bolt):
Cylinder 1 2 3 4 5 6 7 8
Pressure 177 197 195 202 210 200 200 200
Plugs were all dry. Still think its the head/gaskets?
Cylinder 1 2 3 4 5 6 7 8
Pressure 177 197 195 202 210 200 200 200
Plugs were all dry. Still think its the head/gaskets?
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From: Where the war is...
Originally Posted by madsonp
Cylinder 1 @ 177 looks a bit suspicious, and if I remember correctly cylinders 1-4 are drivers side, doesn't that coincide with your O2 sensor ? I tend to agree that it's probably the head gasket, as a cracked head would be a pretty rare occurance.
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Originally Posted by 88FordF-150
Normally with a bad head gasket you will find low compression between two cylinders that are side by side. Are you sure that all these comp. tests are acurate?
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To see if there's different compression test results, I'm going to reinstall the plugs and COPs and let the engine heat up. Then pull the COPs and plugs as fast as I can and redo the compression test. After that, I'll check the coolant pressure again.
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From: Billings, Montana
Originally Posted by sbclemens
To see if there's different compression test results, I'm going to reinstall the plugs and COPs and let the engine heat up. Then pull the COPs and plugs as fast as I can and redo the compression test. After that, I'll check the coolant pressure again.
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I mean you dont have to let the truck warm up then "run" to the cylinder and hurry up for the compression check, just make sure the engines hot. After you get your reading, watch the gauge for a few minutes and see if you see any leakdown (the gauge drops).