What did you do with your 4runner today?

It's worth a try, but I've had the rack on for nearly a year and a half and just started (over the last couple months) to get really crappy mileage...

My stupid fat fingers are still getting used to my new work laptop, I actually have 265/70/17s....

It's the radio starting to fail and the cargo boxes causing excessive fluxing in the Super hydroxyl proportional valve.

I can help you get at least 5mpg more by replacing the leaking bluetooth firmware in the radio with a new one, just send the cargo box to me and I will fix the valve for you free of charge, I am cool like that.

OK, problem solved. Next. .. Who next?

Haha, ok, just go ahead and send me a Kenwood DNX691HD, and I'll use the box to ship my stuff back to you.

Have you had colder temps lately? Winter blend gas? SpeedOmeter calibrates speedometer for different then factory sized tires thus giving you more accurate onboard mpgs/miles to empty/ also makes hand calculations more accurate since,your trip will now be not offset from tire difference? Did you zero point your truck lately?

Well, its winter time, so we've seen temps range from -10 to high 40s over the last 2-3 months I've been calculating my mileage by had for nearly 2 years, the same way every time and haven't really done any modifications (lately) that would cause any change. What do you mean when you say zero point the truck?

[MENTION=73750]Dusty Driftwood[/MENTION], sometimes sudden drastic drops signify the ole stuck caliper. Check there too. Hope you get it licked man.

Thanks man, any more info on the stuck caliper situation? Its not something I'm familiar with. How do I check and (more importantly) how do I fix it?

Thanks for all your help guys. I can post more details when I get home about the mileage numbers I'm seeing. I'm on the road for work and my mileage notebook is in my visor storage pocket
 
Not today, but an updated picture.
 

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Thanks man, any more info on the stuck caliper situation? Its not something I'm familiar with. How do I check and (more importantly) how do I fix it?

get all the tires off the ground (safely on jack stands of course) and then rotate each tire by hand. you should feel the resistance of one being harder to turn than the others. That one (or those) would be the caliper(s) sticking.

sometimes you can press in the caliper piston and free up the caliper but odds are a lip has been created in the cylinder or on the piston and it will freeze up again once brakes are applied. One fix is rebuild the caliper (have the cylinders machined and new pistons and seals installed) the other easier fix is to replace the caliper. Most go with a life time guaranteed caliper so that when they freeze up again its free to replace
 
Had some extra time today and decided to give this a shot
ypusa4yb.jpg


Not sure what's next. We'll have to see where it goes from here..
 
Heres the finished product, might want to swap leds out since one side had more use to it.
<iframe width="1280" height="720" src="//www.youtube.com/embed/1waWkrIbkr0?rel=0" frameborder="0" allowfullscreen></iframe>
 
i pulled out a city metro bus that had turned itself sideways across a few lanes at an intersection in the snow this morning. sat behind him watching him struggle for a while before he gave up and have traffic stopped. pulled out into the snow bank to get around traffic and pulled in front of the bus. hooked up to the rack on front and pulled him back straight and up a snowy hill. felt pretty bad a$$. unfortunately no pictures as the girlfriend got to work from home today.
 
Thanks man, any more info on the stuck caliper situation? Its not something I'm familiar with. How do I check and (more importantly) how do I fix it?

Yep, looks like Austin has you covered. Also a quick test that will sometimes be able to tell you especially since it's cool outside is to try to feel for a hotter set of brakes at the wheels after you finish driving. I will put the back of my hand close to the rotor through the wheel spokes and feel if one (or more) feel a lot hotter than the rest.

And to fix, yeah, I'd just replace the caliper. You'll find that if you search it on here, it's quite common on our trucks. Seems more pronounced in colder climates with harsher winters, salted roads, etc.

Hope that helps. Good luck man. Hope you get it solved so you can report back on your sucky mileage.
 

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