Question about RTO Automatic Transmission And Engine Oil Pressure Tester
I have a 1996 yukon 5.7 litre, whenever I put it in 4 wheel drive I smell a strong oil smell, it is comming from a small hose right of the radiator(drivers side), the hose has a release valve on it. Does anyone know where the hose goes?Or what it is for? Can not follow it.
Hi Chris, I believe that is your engine oil cooler line that runs from the engine to the radiator, which includes, (in some models) an integrated oil cooler and transmission cooler.
Those lines typicaly need to be replaced after 10 years, as they start to break down and "weep" oil through them. You'll want to check them ASAP, as having them fail will cause more trouble if it happens on the road, that getting them replaced now.
You can do this yourself, if you've got the time, tools, and ability, but it isn't all that expensive to have it done for you either. You can typically get the hoses at most auto parts stores, although some will have to order them in.
The smell is just a coincidence, as the engine works harder when in 4 wheel mode, so likely the hotter oil from the engine is weeping out of the degraded hoses as the SUV warms up, etc. Mine did this on my Suburban a few years back and after changing the oil cooler lines, it was like new again.
Hope you find this Very Helpful and best regards!
Posted on Dec 10, 2009
Testimonial: "Thanks a lot, I think the line is o.k., it seems to have a release valve or presure release at the of the hose, this is where the oil is coming out?"
I agree with vtool
Posted on Dec 11, 2009
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Posted on Jan 02, 2017
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