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Old 01-14-2016, 04:43 PM   #1
SAABeginner
 
Join Date: Sep 2015
Posts: 1
R&R'ed water pump and everything went to hell!

Oh, dear and wise SAAB warriors. I seek your help, as I am thoroughly stumped and dismayed.

Thanks you, in advance, for any time, attention, consideration, and suggestions. I'm a newbie to SAABs, but have loved this car in the year
that I've owned it like no other car before.

Regards,
Tom

NB: Am posting verbatim in other SAAB forums. Just a fair-use
announcement!

Type: 2002 9-5 Aero, 92,000 miles

History:

. Temp gage NEVER (previously) left the blue at the very bottom.
. Water pump began a progressively worsening leak.
. Temp gage then rock steady at midpoint all the time now. I'd add
water as needed.
. Leak got worse (pump still fine, no noise). Engine temp spiked two
or three times (but very quickly). Car in neutral, popped hood for
ventilation, turned on interior heat, coasted, got off road, gage already
returning to midpoint. Engine (top of crankcase/valve cover) never felt hot
to touch. Added water and on my way, suspicious about temp gage (although
last temp spike did prompt engine-check light).
. Oil started slowly disappearing. I blamed the broken and loose oil
dipstick cap, but some leakage noted from valve cover gasket and on block.
Didn't seem fresh though.

Repair:

. R&R'ed water pump with full kit from SAAB Central. Drained oil.
. Never removed intake manifold
. Replaced, filled with water for a leak test. Completed oil change
with new filter. Double-checked all connections. PCV valve was noted to be
disconnected AND broken (blew both ways). Replaced with new. Replaced
dipstick and cap with new.
. Go to start, and car *very* sluggish to start (a minute of cranking
but catching)
. Runs fine. but like a steam locomotive! Copious clouds of steam
(condensed on hand, no oil smell, on rainbow in pail to collect exhaust) out
of exhaust, never abated. Water even dripping from exhaust. Shut down.
. Pull DIC. Water is pooled around well of two plugs. Plugs seem
only finger tight in the holes. Remove plugs. All wet (water, not gas).
All clean, except #1 (leftmost/passenger side) fairly sooty and burnt. Two
cylinders full of water. All cylinders are shiny and cleaned. You know,
like they've been scrubbed with water!
. Thin film of oil noted on interior walls of valley, from the gasket.
. Crank and it's like the dancing-water-jets show at Disney. Use
WD-40, crank to dry out cylinders, fill cylinders with oil, replace plugs.
. Drain entire coolant system (was just water for the test run).
Clean, cold, clear, and no oil. Not even a sheen.
. Check oil (brand new, car ran for 1 minute). It's milky.
. Groaned. Drank big glass of Laphroaig.

Stray observations:

. Heard strange whistle during run. Couldn't locate. Probably
expansion tank, because..
. Coolant system became *very* pressurized very quickly. Water-still
cold-expelled from expansion tank upon loosening cap with big whoosh of air.
. No apparent leaks from any hoses/items touched during water pump
replacement.
. No codes.
. Turbo boost gage seemed to be working in its usual correlation to
throttle input but perhaps a little flaky in the first 20 seconds or so.
. No smoke or steam whatsoever before water pump R&R.

Confusion about:

. A simple R&R of a water somehow CAUSED(!?) what looks like a VERY
blown head gasket, intake manifold problem, turbo failure, or who knows what
else.
. Water getting into oil but not vice-versa
. Water in exhaust, but no oil in exhaust.
. Plugs loosening, and their EXTERNAL wells filled with water. Water
being pushed OUT of cylinders by compression?
. Water disappearing. Oil disappearing. Faith disappearing.
. Car ran fine once started. No banging, vibration, or unusual
noises. Except that whistle.

Obvious things to do (but I'm really just guessing):

. Check compression.
. Check/retorque intake manifold.
. Replace valve gasket.
. Clean the sides of the head and the block. Retorque the head bolts.
. Inspect the turbo housing, shaft, seal.
. Drink more Laphroaig.
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Old 01-15-2016, 04:32 AM   #2
Elder
 
turbojohnny's Avatar
 
Join Date: Feb 2008
Location: Orchard Park, ny
Posts: 3,884
on first evaluation, this definitely seems like a head gasket issue(I skimmed through your post)
your water pump may have been failing along with your head gasket, and after refreshing the water pump it only made the head gasket leak worse.
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Old 01-24-2016, 10:53 PM   #3
SAABeginner
 
Join Date: Nov 2013
Posts: 9
Quote:
Originally Posted by turbojohnny View Post
on first evaluation, this definitely seems like a head gasket issue(I skimmed through your post)
your water pump may have been failing along with your head gasket, and after refreshing the water pump it only made the head gasket leak worse.
My thoughts exactly. With the water pump leaking, the gasses and pressure had somewhere to go. Now with the water pump leak fixed, it's a nice tight seal, and it looks like the next weakest link was a already weak headgasket.

Hopefully nothing got damaged in the bottom end! If not, then a head gasket, maybe 3 oil changes, and an extra coolant flush or two is in your future! Should all be easily done in a weekend or two worst case
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