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  #25  
Old 07-31-2013, 10:20 PM
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Looking forward to taking a EPA trip out there in the spring/early summer once I get the ecodiesel. All f my friends still in telluride swear by their subarus. HA! Funny story. At red mountain pass his car shuts off the turbo because the O2 sensors are detecting low oxygen. Had to drove the car to dealer to turn it back on. Seems exact opposite of what you want.
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  #26  
Old 07-31-2013, 11:24 PM
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Quote:
Originally Posted by Jeep4Ron View Post
I have a 2014 Overland with the V6 and ORAII that I need to drive up a very steep mountain road. The road is paved the entire way, but has some of the steepest switch-backs I have ever seen. I have driven the road before in my old 2001 Grand Cherokee but it had a V8 engine.

My question is, should I use 4-wheel low when going up and down this road or is that bad for the drive train or axles going up a steep, paved road with extremely sharp turns? You can see the top of the road if you cut and paste these coordinates into Google Earth:

39 12 17.62 N 121 49 11.53 W

At one point, the road gains 250' elevation in just over 750' horizontal. With no guard rails and a 1,000'+ fall into the valley, you don't get to make two mistakes on a road like this!

Sutter Buttes? Smallest mountain range in the world.
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  #27  
Old 08-01-2013, 07:10 AM
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Re: Need Advice on Mountain Road Driving

Quote:
Originally Posted by Herb4372 View Post
Looking forward to taking a EPA trip out there in the spring/early summer once I get the ecodiesel. All f my friends still in telluride swear by their subarus. HA! Funny story. At red mountain pass his car shuts off the turbo because the O2 sensors are detecting low oxygen. Had to drove the car to dealer to turn it back on. Seems exact opposite of what you want.
This statement is NOT correct. The turbo is a mechanical device that cannot be turned off on its own, separately. If the car could be driven to the dealership, then nothing was shut off - not the engine, not the turbo. The turbo's operation is dependent on the engine's hot exhaust. If the engine works, the turbo does. And if the turbo fails, the engine fails in the next 10 seconds, having sucked all the debris (if the blades get destroyed) or the engine will feel massively underpowered, if it is a turbo oil leak/coolant leak issue.

I also doubt the CEL (Check Engine Light) for the O2 sensor - but then again, on Subaru, people's experience with O2 sensors falls into 2 categories: those that always have problems and those that drive 200,000 miles on the same O2 sensor, beating the crap out of the car and modding the engine to within 100 rpm of its death, and then get rid of the car, with a perfectly functioning O2 sensor inside.

I've driven my modded Subaru at high altitudes and never had an issue. There's nothing but joy driving it, knowing that most everybody else's non-forced induction engine is astmathic. I mean, that's when the guy with his 6.4 L V8 Corvette gets owned by a turbo 2.5 H4 (modded, I admit).
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  #28  
Old 08-01-2013, 07:53 AM
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F1anatic:


My apologies. I should have explained that my expertise regarding subarus includes the hand full of times I drove them (and they're excellent and fun to drive). And my expertise on turbos included only those attached to 16,000 hp medium speed diesel plants on ships. Which can infact be disabled and the engine still operate. Though not very efficiently.

I am neither a mechanic not a Subaru owner and had to take my compadres word on the issue. Which came about as such.

Driving over red mountain pass in a snow storm in December, the check engine light came on and we lost a dramatic amount of horse power.

The car made it back. And a few days later he drove it to the dealership some 2 hours away.

I inquired eventual weeks later what ha occurred and he explained something regarding the o2 sensor and turbo and that it wasn't the first time it had happened.

I suppose my mind filled in the blanks incorrectly. It wasn't meant to be a dog on subarus (I'm quite a big fan) nor intentionally misleading. Regardless, he's got it worked out. I only meant to convey that several times when that particular car had been over 11,000 ft he's had problems that caused him to lose hp when he needed it most.

To all at JG, I'm sorry if this seemed sensationalized or inaccurate.
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  #29  
Old 08-01-2013, 05:59 PM
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Re: Need Advice on Mountain Road Driving

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Originally Posted by DirtyMark View Post
Sutter Buttes? Smallest mountain range in the world.
Indeed it is! An old extinct (I hope!) volcano that rises out of the very flat, near sea level land up to nearly 2,200'. What makes it look so stark is that the areas nearby are so flat, that much of it is used for rice paddies. There are some rolling hills you can see in the pictures, but the terrain is generally flat from the Sacramento Delta all the way up to Redding. And then, this big, jagged mountain just sticks up in the middle of it! Really quite a rush driving up and down the private access road to the radio site at the summit.
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  #30  
Old 08-01-2013, 07:22 PM
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Re: Need Advice on Mountain Road Driving

You better double-triple check to make sure you didn't forget to bring everything you needed.
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  #31  
Old 08-02-2013, 08:41 AM
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Re: Need Advice on Mountain Road Driving

No worries about getting the turbo stories slightly wrong.
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  #32  
Old 08-04-2013, 03:28 PM
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Re: Need Advice on Mountain Road Driving

That looks like a fun drive! I've driven by this countless times, never thought about whats on top of it!
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