Started my beloved '02 Aurora while parked in front of my house. Thought I
heard a loud thump but wasn't sure because the radio was a tad loud.
Noticed that power steering was absent, and the charge light was illuminated
brightly. Figured belt broke. Shut it down. No time to check now. Do it
Wasn't the belt. Idler pulley bolt sheared off almost flush with the
alternator's mounting flange. Hard to reach. Not enough left to get hold
of with Vise Grips. Can't drill it. No way to get a drill down in there.
After looking over the arrangement under the hood my brilliant idea now is
to take off the thermostat housing and radiator hose in hopes it will allow
me to slide the alternator off the bolt's remains and get a much better shot
Decided maybe the thermostat should be replaced as preventive maintenance
after the housing is off. Headed off to the dealer feeling good about
"keeping my GM car all GM."
They could order the Tstat housing seal, but the new thermostat comes as a
housing/Tstat assembly. Right around $40. Choke! Gag!
Inquired about a new bolt for my idler pulley. They don't sell just the
bolt. Have to buy the pulley "assembly" also about $40. More choking and
Decided to not replace the Tstat. Headed off to NAPA to get the seal.
Nope. They don't even sell the seal, just the assembly. About $33 my
How about an idler pulley? Nope. They just sell the tensioner.
Got on line and queried Advance and AutoZone sites. Struck out there
although they did list a Prestone Tstat. GM Parts Direct looks promising.
Please forgive my ranting. I would like to know more about this
thermostat/housing assembly deal. Have never seen it up close and personal
yet as it's still on my machine. It truly can't be serviced by putting a
new Tstat in it?
How about that bolt for the idler? Can I just go to a place that sells
metric bolts and find a suitable replacement, or should I just spring for a
whole new pulley/bolt assembly?