Still trying to diagnose a cooling issue... upper hose hot, but lower hose cooler?
08-14-2010, 01:44 PM
#21
I'm not sure what it is. Right now the plan is to make some calls monday and I'm taking it to a decent shop who will perform a compression and leak down test and pressure test the cooling system. I think this is just the best way to go about it right now. I think following that I'll know what direction I need to go in.
08-14-2010, 03:10 PM
#22
TECH Senior Member
Sounds like the crossover tube is clogged.
Do you have a close up pic of the grey specs...
Check these for presence of coolant:
- engine oil,
- power steering fluid (if you have inline PS cooler),
- auto trans fluid (if you have in-radiator ATF cooler).
Steam doesn't usually come out of radiator neck unless it's overheating.
Did you test the thermostat by heating it up in your wife's saucepan and observing that it opens (a thermometer would be good).
If you suspect head gasket, in addition to compression and leakdown tests, try this: http://www.tooltopia.com/lisle-75500.aspx
Do you have a close up pic of the grey specs...
Check these for presence of coolant:
- engine oil,
- power steering fluid (if you have inline PS cooler),
- auto trans fluid (if you have in-radiator ATF cooler).
Eventually, some steam started to slowly come out of the coolant cap and it was bubbling slightly, I thought that maybe the thermostat had finally opened.
Did you test the thermostat by heating it up in your wife's saucepan and observing that it opens (a thermometer would be good).
If you suspect head gasket, in addition to compression and leakdown tests, try this: http://www.tooltopia.com/lisle-75500.aspx
08-14-2010, 04:20 PM
#25
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