|
|
Over heating, Over Pressure also no heat 1998 sable 3.0
|
|
|
| |
|
|
Toma55
Anonymous Poster
theberling@cox.net
Nov 24, 2008, 9:47 AM
Post #1 of 2
(2222 views)
|
|
Over heating, Over Pressure also no heat 1998 sable 3.0
|
Sign In
|
|
My problem is working in reverse. i actually found the worn out water pump 1st but I still have the overpressurization problem. i used a sniffer to check for hydrocarbons in the cooling system so I don't think its a blown head gasket. I'm going to try and flush next. Maybe there is an old piece of the water pump plugging a port somewhere.
(Toma55 -I started your own thread as this was tagged on to a year old one now fixed with another problem which WAS a worn out water pump - Let's start this one from here. If wrong engine or year just say and I'll fix that, TomG)
(This post was edited by Tom Greenleaf on Nov 24, 2008, 12:23 PM)
|
|
| |
|
|
Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 24, 2008, 12:37 PM
Post #2 of 2
(2213 views)
|
|
Re: Over heating, Over Pressure also no heat 1998 sable 3.0
|
Sign In
|
|
My guess is when a water pump can deteriorate it probably doesn't throw chunks but rather just small rusted particles so that alone would not likely be causing quick pressure or overheats now. Yes it should be flushed but if this will pressure up fast from cold and filled - that is known filled at the radiator not just the recovery tank then it probably blows air or coolant at the recovery tank too but may have stabililized.
Feel the zero pressure of upper hose when started up cold. It should build up pressure within an actual couple minutes and if so that's strike one for the head gasket. Ok - once upper hose is warm/hot - then carefully release pressure again (danger with that and use all common sense or don't) check level, put pressure cap back on and it shouldn't build up pressure again as it's already expanded. If it repeats pressurizing again right away there's got to be combustion gasses getting into the cooling system and the head gasket is the weak link. It's also consistand with you already had a flow problem and overheated and may have started the issue then.
Air will simply prevent heater from working at all or properly and overheats and irregular temp readings will show up.
Go ahead and test for exhaust gasses in recovery tank or at radiator but that test alone isn't enough IMO but would finish off the diagnosis,
T
|
|
| |
|
| | |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 