1988 4Runner
3.0
240,000 miles
5 speed
32x11.50 off brand tires (sort of an AT style)
As far as I know it is pretty much stock. I have given it a complete tune-up, checked the timing, dropped and cleaned out the fuel tank, etc.
I understand that it is a 3.slow. I can, if I anticipate traffic and hills, run 60 (almost 65). It seem to be horribly slow. Mixed driving returns 12ish MPG.
Eventually I plan on doing the 3.4 swap but its just not in the time or money budget right now. What I want to know is what are other 3.0 owners getting for mileage and how it seems to do with 32s?
I am trying to figure out if maybe there is anything I do to try to find some missing HP or just grin and bear it until I can do a swap? The swap is not in the foreseeable future.
Are you sure that your rig didn't come with 225/75 R15 tires? You may be way undergeared. My 1990 pickup had that engine, and I ran 30's since it had the small tire package. I got around 20mpg. Just one theory...
I don't know what it originally came with. It has 32s now from the previous owner. I'm not sure of the gearing. I'll check later.
I'm open to any ideas/theories.
Well...those 4runners certainly didn't come with 32's stock. They either came with 27's -or- 31's. If it came with 27's, then running 32's would make it gutless. That is the theory I am going with...
Wrong gearing or not you should be able to do more than 65.
You've got engine problems. Either a clogged cat, clogged air filter, or it's misfiring. Is the check engine light on? Codes are pretty easy to pull on the old trucks.
That 4runner probley has 4.10s which toyota used with 5speed 4wds 22re and 3.0s with 225/75-15s(28s). Factory 31s weren't an option until the early 90s and they used 4.56 gears with them on either engine with 5speeds, a/ts got 4.88s with 31s. You'd want at least 4.88s with that engine and 32s, but some else has to be wrong to not be able to go over 65.
i was getting maybe 200 miles to a tank , my only solution was to buy a comuter car , i might have been getting 15-16 combined driving with 33's and no lift , it will get worse after I lift it , and power is one thing they don't have
You got something going wrong. My 1990 pickup with a 3.0 and 31x10.50 mud terrains will run 100 mph down the highway any day of the week. Its also all stock. You must have some different gears or something. Also i got like 15 mpg.
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