pressure test
05-09-2015, 04:10 PM
#1
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pressure test
did a pressure test on my coolant system it held 18 psi. now i am stilloverheating so i am wondering would an intake leak cause the car to overheat? i do see some old oil around the passenger side upper intake near the alternator side?
05-09-2015, 05:47 PM
#3
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Re: pressure test
i see well do u have any idea what this could be? i am out of suggestions/ways to see whats wrong with it... i have a 180 degree thermo in there,. maybe the previous owner programmed it for 160 degrees thermostat? i dont know i hate guessing.
05-09-2015, 06:23 PM
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Re: pressure test
it has to be my fans not kicking on because when im moving temp is fine but when im at idle/stop and go traffic and redlights it starts to climb higher to the red mark until it gets to the red and says check gages thats how i know it has gotten way to hot and needs to be turned off immediately. i have replaced the fan relays with brand new ones and when i attach dlc the fans do turn on so i am confused.
05-09-2015, 08:19 PM
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Re: pressure test
05-11-2015, 07:17 AM
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Re: pressure test
Check with Gary. I can see the coolant temp going up, but you didn't record the fields that show the status of various "switches" like the fan relays. The second file column labels are not in a format I've ever seen before.
05-11-2015, 02:52 PM
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Re: pressure test
New file indicates both fans are running (at least the PCM has signalled the fan relays to turn them on), but the coolant temp continues to rise. If you can see the fans running when the coolant temp approaches 250*F, as it does in the data log, the fault is with the cooling system, not with the CLT sensor or the PCM.
05-11-2015, 08:37 PM
#13
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Re: pressure test
New file indicates both fans are running (at least the PCM has signalled the fan relays to turn them on), but the coolant temp continues to rise. If you can see the fans running when the coolant temp approaches 250*F, as it does in the data log, the fault is with the cooling system, not with the CLT sensor or the PCM.
Last edited by warmeck; 05-11-2015 at 11:08 PM.
05-12-2015, 05:26 AM
#14
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Re: pressure test
Holding pressure just means the system has no leaks. Doesn't mean the internals of the cooling system are clean. Doesn't mean the air flow through the radiator is not being impeded. Doesn't mean there is good flow through the system.
Are you saying that with all they problems you have been having with the cooling system, you have never had the system flushed? Half the radiator could be plugged up, and not providing an cooling. A layer of rust or sludge on the internals of the block interferes with heat transfer.
Are you saying that with all they problems you have been having with the cooling system, you have never had the system flushed? Half the radiator could be plugged up, and not providing an cooling. A layer of rust or sludge on the internals of the block interferes with heat transfer.
05-12-2015, 04:22 PM
#15
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Re: pressure test
Holding pressure just means the system has no leaks. Doesn't mean the internals of the cooling system are clean. Doesn't mean the air flow through the radiator is not being impeded. Doesn't mean there is good flow through the system.
Are you saying that with all they problems you have been having with the cooling system, you have never had the system flushed? Half the radiator could be plugged up, and not providing an cooling. A layer of rust or sludge on the internals of the block interferes with heat transfer.
Are you saying that with all they problems you have been having with the cooling system, you have never had the system flushed? Half the radiator could be plugged up, and not providing an cooling. A layer of rust or sludge on the internals of the block interferes with heat transfer.