04_Sport_LS
Dedicated LVC Member
That right there tells me there is air in the system. Shouldn't be any fluctuation in coolant temp.
Cars like to run warm i guess?
- Thread starter SultanGris
- Start date
04_Sport_LS
Dedicated LVC Member
Dare I suggest that you have a head gasket leak... bad head, or a cracked block. That would explain all the Stop Leak.
04_Sport_LS
Dedicated LVC Member
Some previous owner may have run straight water in it, and when a cold snap hit, the block froze.
I do realize that it gets cold in Nevada at night. Especially in the winter.
I do realize that it gets cold in Nevada at night. Especially in the winter.
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SultanGris
Dedicated LVC Member
Yes, like I said this thread is 2 years old, that motor blew up, waiting for a newer one to be installed, hopefully solves all my problems, cars been sitting for 2 years. First motor they sent was no good, they dropped and broke the second one and mechanic just got the 3rd one so hopefully it's good and fixed within the next month or two.
nghtshd88
Well-Known LVC Member
Went to put a new OEM thermastat in and fixed half of my running warmer issue on the new donor motor. Piece of plastic tab was lodged in the thermastat. Maybe it was laying in the donor motor.
About to compare the old OEM pump still on the old motor vs the new aftermarket pump that I have on the donor motor this week.
Manual says thermastat housing must come off to change the water pump. If thats really true I probably will live with it. Not looking to take that off again anytime soon..
About to compare the old OEM pump still on the old motor vs the new aftermarket pump that I have on the donor motor this week.
Manual says thermastat housing must come off to change the water pump. If thats really true I probably will live with it. Not looking to take that off again anytime soon..
04_Sport_LS
Dedicated LVC Member
Yes... the tabs break off, but they are just for centering.
If you have a Gen 2 3.9... the water pump is the easiest thing to replace on the LS.
If you have a Gen 2 3.9... the water pump is the easiest thing to replace on the LS.
AmsterDutch
Dedicated LVC Member
This is true for both generations
nghtshd88
Well-Known LVC Member
Never saw that until now and it definitely caused a spike in temp. New thermastat is running colder.
Comparing SKP China Pump and OEM there is a difference in the fins and smoothness. Will be putting the OEM on in a week or two.
AmsterDutch
Dedicated LVC Member
I found the metal water pump fins are way better on aftermarket waterpumps when changing out the OEM Motorcraft Water Pump years ago noticed the plastic fins eroded, won't have that problem ever again with the metal
04_Sport_LS
Dedicated LVC Member
The OEM Jag WP is the best of them all.
nghtshd88
Well-Known LVC Member
Meaning LS Pump? Id agree as the original pump looked flawless when removed.
If it eroded id think it didnt have the proper coolant or changes.
04_Sport_LS
Dedicated LVC Member
The biggest issue with the OEM/Jag pump would be bearing failure due to in -service length.