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Disasterous injector failure questions. 900 1997

posted by rafferd on Wed Dec 22 09:40 CST 2004
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last visit: Tue Oct 21 11:10 CST 2014

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This is a strange story.

The 97 960 was in for a routine rear main seal replacemnt with the usual symptoms. Oil leaks, esp. after a lon run, onto the exhaust.
Well, the garage replaced the main seal (also replaced the transmission seal)and everything seemed fine.
Within hours of normal driving, the car appeared to run rough, misfiring. We brought it back to the garage, where a blocked, open fuel injector was diagnosed. Not only that, the cylinder had filled from gas from the injector, and hydraulic pressure had damaged the cylinder, piston and rod.
I am going to the garage this afternoon to hear the financial damage.

My questions are these, just how frequent is this type of injector failure? In any way could the seal replacement be related. Is the garage liable?

Thank you,

Dan

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Disasterous injector failure questions. 700 1989

posted by vinraz on Wed Dec 22 17:21 CST 2004
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last visit: Wed Jan 11 13:25 CST 2012

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3 years ago my 89 740 Turbo developed a serious knock at start-up, after having been hard to start. The car was flat-bedded home, then looked at by a Volvo tech who said either the rod was bent or a engine bearing destroyed from the cylinder filling with fuel caused by a stuck injector. The injectors were clean and balanced 6 months prior. I ended up replacing the engine with a 94. The Volvo tech had seen this happen twice before, once on an 850 when it was in for service. It is extremely rare, but it does happen. Go on google or yahoo and type in "injector stuck open". My condolences. Been there, done that. Mine happened on Jan. 2. Not a good start for a new year.

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Disasterous injector failure questions. 900 1997

posted by dewfpo on Wed Dec 22 11:59 CST 2004
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last visit: Thu Oct 23 18:34 CST 2014

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I've never heard of this happening before. Not sure how the two could be connected. The wires for the injectors run under the intake manifold and over to the connectors by the strut tower on the driver's side so I can't see how'd they be pinched. Coincidence....?

DEWFPO
--
1998 S90 071,245 and 1995 964 154,100

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Disasterous injector failure questions. 900 1997

posted by jbowers on Wed Dec 22 10:53 CST 2004
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last visit: Sun Jan 22 13:49 CST 2012

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I can't think of another situation reported on this board since I've been here. (Almost 5 years.)

The engine has to be supported while the transmission is removed and it is possible the wires at the back of the engine got pinched if it wasn't done properly????????? If an injector wire was pinched, maybe it was held on???

Also, is it possible the hydraulic lock occured while they were diagnosing the engine and it was OK when you brought it in.

I'm not saying any of this happened but while not probable it is possible.

--
'96 965 with 16' wheels at 121K. Had '85 745 Turbo Diesel for 200K.

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