05-09-2019, 12:20 AM
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#1
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Can we mix A/T tire with regular tires/
Hi,
I recently purchased 4runner. I've been trying to post multiple questions on this forum for possible cause of vibration while accelerating for speeds between 25-45 mph.
The earlier owner had replaced one of the rear tire with some brand (unknown to me) new Provider A/T tire. The rest of the 3 tires are non A/T and have around 5-7k miles life left in them.
The owner replaced it due to some damage to one of the tires and maybe was trying to go cheap route since he was selling it.
My question is: Is this mix-up of tires setup cause of Vibrations that I am feeling in my gas pedal while accelerating? I don't feel it while its cruising.
Any suggestions?
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05-09-2019, 12:32 AM
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#2
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That actually sounds dangerous to me. Being an A/T it will be stiffer than the other three and probably different in diameter, even though it may be the same size. I would replace it with one like the others or do all, if you are looking to upgrade your tires.
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05-09-2019, 12:33 AM
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#3
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I can't say if it is the source of your vibrations but I once introduced problems on my 97 Taco by having different tires on the front and back. Both the same size but different levels of wear and tred patterns. Truck could not engage 4wd. and had this giddy-up (up down up down fore aft motion ) feel when accelerating.
I've been told that on the 4th gen you gotta limp out if you have a street tire spare with a set of AT tires.
I'd strongly suggest getting all 5 tires swapped for a matching set.
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05-09-2019, 12:52 AM
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#4
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I agree with the others, if that is AWD you absolutely want matching tires. My understanding is that the 4Runner/GX AWD system is not as sensitive to tire differences as Subaru's (with which I am much more familiar), but it is still a full time system.
So identical tires all around and hope no damage has been done.
As for the part time systems, I am running two newer and two older P-metric Wildpeak. The dealership just told me to keep the new ones in the rear longer than usual so I am rotating side to side instead of front to back right now. Everything, including crawl control works normally.
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05-09-2019, 01:16 AM
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#5
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Quote:
Originally Posted by MAST4R
I agree with the others, if that is AWD you absolutely want matching tires. My understanding is that the 4Runner/GX AWD system is not as sensitive to tire differences as Subaru's (with which I am much more familiar), but it is still a full time system.
So identical tires all around and hope no damage has been done.
As for the part time systems, I am running two newer and two older P-metric Wildpeak. The dealership just told me to keep the new ones in the rear longer than usual so I am rotating side to side instead of front to back right now. Everything, including crawl control works normally.
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Quote:
Originally Posted by Boort
I can't say if it is the source of your vibrations but I once introduced problems on my 97 Taco by having different tires on the front and back. Both the same size but different levels of wear and tred patterns. Truck could not engage 4wd. and had this giddy-up (up down up down fore aft motion ) feel when accelerating.
I've been told that on the 4th gen you gotta limp out if you have a street tire spare with a set of AT tires.
I'd strongly suggest getting all 5 tires swapped for a matching set.
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Quote:
Originally Posted by Swipter
That actually sounds dangerous to me. Being an A/T it will be stiffer than the other three and probably different in diameter, even though it may be the same size. I would replace it with one like the others or do all, if you are looking to upgrade your tires.
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Thanks for your quick response guys. I'll see if I could replace all new sooner. Somehow not happy with the truck due to gas pedal vibrations. Took it to mechanic and he honestly told me there's nothing he could do with Vibrations!!  He's a very experienced mechanic a Toyota Specialist.
More about car: Its a 2004 RWD model with 109000 miles.
Given that I feel not putting more money on it with new tires. I might replace the one in spare tires for now. Even though its less tread but at least its same pattern and type.
Really bugged when mechanics turns you down by saying "There's nothing I can do" Can't find out source of vibrations. He did acknowledge he could feel it between 25-40 mph.
Last edited by pixologics; 05-09-2019 at 01:26 AM.
Reason: more details
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05-09-2019, 12:10 PM
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#6
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Quote:
Originally Posted by pixologics
Really bugged when mechanics turns you down by saying "There's nothing I can do" Can't find out source of vibrations. He did acknowledge he could feel it between 25-40 mph.
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When you say mechanic, is he an alignment/tire type specialist as oppose to an engine type mechanic..?
If not I would consider taking the T4R to a shop that specializes in that type of problem and has the proper equipment to do that type of diagnostic.
Good Luck! 
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05-09-2019, 02:53 PM
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#7
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Quote:
Originally Posted by L8Shift
When you say mechanic, is he an alignment/tire type specialist as oppose to an engine type mechanic..?
If not I would consider taking the T4R to a shop that specializes in that type of problem and has the proper equipment to do that type of diagnostic.
Good Luck! |
He's an engine and mechanical repair Toyota specialist. Does not do tire alignment/balancing etc. Very experienced guy, always seen him working on Land Cruisers, Tundras, 4runner, Lexus GX and others.
I am not sure why he said nothing he could do. Maybe not worth his time/effort to figure out. He did test drive with me on 2 occasion but said same there's nothing I could do.
Any recommendation for (T4R shop that specializes) mechanic or some fellow member who stay in Inland Empire, CA. I could get to them and they could give it a try.
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05-09-2019, 03:48 PM
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#8
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Quote:
Originally Posted by pixologics
Any recommendation for (T4R shop that specializes) mechanic or some fellow member who stay in Inland Empire, CA. I could get to them and they could give it a try.
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I am on the East Coast, the folks I rely on are trained to use Hunter Equipment, to include Road Force Balancing....
Here's their site locator.
GSP9700 Full Screen
But getting your tire situation straighten out would be my first goal..
Can you temp swap/borrow another set of balanced match set of wheels/tires to isolate the issue?
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2007 T4R Sport V8 4WD, 145K, Seat Warmers, Pioneer NEX
2007 T4R Limited V8, 4WD, 181K, OME 2"
2014 GX 460 Premium
1997 FZJ80 OME 2.5"
2006 T4R Limited V8 - R.I.P.
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05-10-2019, 01:42 AM
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#9
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Quote:
Originally Posted by L8Shift
I am on the East Coast, the folks I rely on are trained to use Hunter Equipment, to include Road Force Balancing....
Here's their site locator.
GSP9700 Full Screen
But getting your tire situation straighten out would be my first goal..
Can you temp swap/borrow another set of balanced match set of wheels/tires to isolate the issue? |
Thanks for suggesting about Hunter equipment based balancing. I'll try to get it done this weekend. Not sure if I can find out 4 tires of same size somewhere to swap on temp basis. Let me see what works out. I'll get back with results.
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05-10-2019, 10:06 AM
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#10
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Quote:
Originally Posted by pixologics
Thanks for suggesting about Hunter equipment based balancing. I'll try to get it done this weekend. Not sure if I can find out 4 tires of same size somewhere to swap on temp basis. Let me see what works out. I'll get back with results.
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If you're looking for something pedestrian look at the "used" market. I got a set of 255/75/17 with 100miles from a Jeep takeoff for $250. It came with stock Jeep wheels which I have no use for but the tires alone is well worth it. Since 80% of my driving is on pavement (Daily Driver) I don't need anything aggressive.
Just a thought.
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Last edited by blackjackck; 05-13-2019 at 08:19 AM.
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05-11-2019, 12:36 AM
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#11
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Quote:
Originally Posted by blackjackck
If you're looking for something pedestrian look at the "used" market. I got a set of 255/75/17 with 100miles from a Jeep takeoff for $250. It came with stock Jeep wheels which I have no use for but the tires along is well worth it. Since 80% of my driving is on pavement (Daily Driver) I don't need anything aggressive.
Just a thought.
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Yes, I am trying to find out in used as well over craigslist. I've 16'' wheel. Don't feel need for 17".
Other question: Does all 4runners vibrate/pulsate to some extent at freeway speeds as well. I do have a Honda CRV I know its not same size but it has not vibration issues.
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05-11-2019, 12:49 AM
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#12
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Are you paying him to diagnose it?
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05-11-2019, 12:57 AM
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#13
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Quote:
Originally Posted by alextmullis
Are you paying him to diagnose it?
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Told him to keep the truck in shop and fix it, I am ready to pay. He says same nothing he could do 
Last edited by pixologics; 05-11-2019 at 01:02 AM.
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05-11-2019, 05:30 PM
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#14
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Quote:
Originally Posted by MAST4R
I agree with the others, if that is AWD you absolutely want matching tires. My understanding is that the 4Runner/GX AWD system is not as sensitive to tire differences as Subaru's (with which I am much more familiar), but it is still a full time system.
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not AWD, full-time 4WD.
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05-11-2019, 06:08 PM
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#15
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Quote:
Originally Posted by grave
not AWD, full-time 4WD.
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Right, which works as AWD on road 
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(6112s/650lb at 2.25" lift, 8100 rear with Bilstein B12 1.5" springs, Mickey Thompson BAJA MTZ LTE 265 70 17, RCI set of front 3/16 skids, Shrockworks step sliders and 3/16 steel gas tank skid, C4Fab rear diff skid, Rockmen rear LCAs, Total Chaos rear LCA bracket skids, Diode Dynamics SS3 white fog lights).
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