Roadside failures

Grunff, In responce to your failure list I have in the last 10 years Saabs`s towed in with the following failures: Classic 900 Drain housing 11 Water pump 23 Top hose 6 Rad 14 Turbo coolant pipe 3 Bottom hose 4 Head gasket 27 Distributor 4 Clutch 18 Clutch hydraulics 37 Gearbox [man] 11 Gearbox [auto] 2 Gearlinkage 7 Oil pump 3 Drive shaft/cv 9 Lower ball joint letting go 3 Alternator 18 Fuel pump 10 Ignition switch 14 Timing chain 2 Brake failure 5 Wiper linkage 26 Starter 14 Various non start 129 Self starting 900 that drove off on its own 2

9000:

Di cassette 21 Auto box 15 Fuel pump 17 Heater Hose 15 Crank angle sensor 7 Oil pump 5 Alternator 21 Top hose 5 Turbo 4 Brakes 7 Clutch Hose 9 Master cyl 26 Slave 11 Clutch 31 Crank angle sensor 9 Gear linkage Manual gearbox 12 Gearbox not fixed to engine 1 Drive shaft tube 3 Wheel rim failure 2 Ignition switch 13 Aux belt/Idler 17 Head Gasket 13 Non start 47

By far the most common failure on GM 900 is the aux drive belt idler/tension pulley 23 this year alone.

Hth Tom, Saabtech.

Reply to
Saabtech
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That's a great list, thanks Tom. What's a drain housing?

Reply to
Grunff

Interesting contrast. Does it tell us more about...

a) The relative numbers of manual and automatic gearboxes on the roads?

b) Quality/durability of the two kinds of boxes (ie, maybe autos are built to take more abuse from amateurish drivers)?

c) Something concerning the way people drive the two kinds?

d) Suddenness of failure modes associated with the two kinds (ie, gradual deterioration might be caught during servicing, while a catastrophic collapse -- avalanche effect -- might not be)?

e) Something else?

-- Andrew Stephenson

Reply to
Andrew Stephenson

Cracked engine oil or gearbox oil drain plug areas/casing ?? (doesn't seem like these would be roadside type items, tho)

Reply to
Lance Morgan

Its the alluminium housing, sacrificial?, under the exhaust manifold where your supposed to drain the block, near immpossible, they fill with silt and rot out from the inside, regards Tom.

Reply to
Saabtech

On early 900`s and 99`s with the starter motor under the exhaust manifold the wiring harness for the starter solenoid, ballast resistor and the power wire from the alternator pass over the clutch cover in a black plastic sheath, the rubber over the cables would perish unseen and create a short, thus cranking the engine being ballast resisted the engine woud fire. With a poor handbrake and being in reverse gear off it would go till it hit somthing or ran out of battery, regards Tom.

Reply to
Saabtech

Probably the biggest reason is that the auto is far outweighed by the manual in terms of numbers coupled with the fact that the auto was a pretty dreadfull piece of kit based on a borg warner 35 that goes back to the

1950`s. Manual gearbox failure is nearly allways due to pinion bearing failure, you warn `em to get it done while it can be repaired at a reasonable cost but they just drive on till it goes bang big time. Regards tom.
Reply to
Saabtech

idler/tension

Reply to
Terry F.Rock

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