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940 Turbocharger failure-How will it run w/o repairing it? Repair options?

Have had three n/a redblocks previously,bought my first turbo eight months ago at 188,000, a 1994 940. Fun car to drive.

Last week, with 214,000, noticed leakage of an odd brown fluid from a small split in the hose under the coolant reservoir, alerting me to oil in the coolant, presumably from the turbo.

Almost simultaneously the car has acceleration problems,very sluggish. My local indy mechanic, a reliable Volvo guy, diagnoses a failed turbo, and says the best replacement he can find so far is a used one(no warranty) for $300, plus labor.

I have fixed the coolant hose leak. Several questions, most urgent of which is, can I continue to drive it routinely with a dead turbo? If I can drive it long term w/o turbo repair, I may do so while I figure out my nest step.

Next question, since the body and interior of the car are in very good shape, what is my best turbo option if I decide to repair? It strikes me that installing a junkyard part is risky, and may be more expensive in the long run,

Fianlly, how difficult is it to DIY? I'm not completely inept, having done brakes, fuel pumps,and other simple repairs, but have always hated doing exhausts, heads,etc, inevitably breaking studs, or getting into spaces that seem too cramped to manipulate tools.

I have a concern that the oil/coolant mixture might migrate into the engine, with catastrophic results, If not, I am tempted to continue to drive it w/o turbo repair. Experience, thoughts, suggestions?

Thanks in advance.

Ed








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    940 Turbocharger failure-How will it run w/o repairing it? Repair options?

    Hmm. The first thing that occurs to me is how does he know the turbo is blown and responsible for the leak?

    You have oil in the coolant, yes? It could be engine oil or transmission fluid.
    I'm surprised that the turbo is leaking and causing the problems. I'd suspect a transmission cooler or a head gasket before a leaking turbo seal.

    I'd say your best bet is to replace the turbo with a used unit. Water cooled turbos are pretty durable, so a used one that's in good shape should stay in good shape for quite a while.

    Anything else will either leave you with a sluggish low-compression (8.7:1 instead or 9.5-10.1:1) car, and will require other used parts to complete, like a new manifold. You should replace all of the rubber coolant lines now because they've been exposed to oil from the inside. They might last a few months, but the oil will damage and soften the hoses, and they won't stay on their mounts - the result will be catastrophic coolant loss.


    If it's really the seals in the turbo leaking, you won't be able to just drive around like that.

    Good Luck!







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