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#1
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Annoying Tranny stuff
Hi all,
I got my car back from my daughter after 2 years. I have repaired a few items (with help from the group) and now I have moved onto the next problem. The Torque converter lock appears to lock and unlock at freeway speeds under certain loads. On my way home, the converter locks about 2 1/2 miles into the trip. It will unlock and lock several times as the gradient from flat starts to increase for the next hill until it steepens enough, and at that point it locks and remains locked until I approach the crest of the hill. When approaching the crest, as the gradient lessens, the converter will unlock and lock about once every second or two until the gradient lessens to almost flat, at which point it locks again, only to repeat this behavior on the next hill, and the next... I live in the Seattle area and hills are a fact of life. Any suggestions as to the cause and cure of this annoying little gremlin? TIA Chip. |
#2
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Re: Annoying Tranny stuff
If your TPS is out of adjustment it could do that. Check your TPS, I think there are instructions in the How To docs...
Do you have an external tranny cooler? Tranny Temp Gauge? When the ATF gets below 100* the TC will unlock.
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Dave - 03 Baja - 92 SVX - 86 Brat - 08 OB 3.0 |
#3
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Re: Annoying Tranny stuff
The tachometer in my silver SVX ticked back and forth like a metronome in a certain narrow throttle range, due to the torque converter locking and unlocking. Replacing the throttle position sensor was the cure.
dcb |
#4
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Re: Annoying Tranny stuff
Fixed it for ya Dave.
__________________
www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#5
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Re: Annoying Tranny stuff
When my gauge works and it's cold out, I can feel the TC unlock at when it drops below 100 and lock up once it climbs a little above 100. I have the temp sensor in the output line from the trans.
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Dave - 03 Baja - 92 SVX - 86 Brat - 08 OB 3.0 |
#6
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Re: Annoying Tranny stuff
Thanks Guys,
It looks like an easy test and fix if the TPS is the problem, but I am a bit surprised at the cost of a new one. I am seeing between $150 to $316!! For what they are (A potentiometer) this is pretty outrageous. I will try to find one in a junk yard with low miles. I will post results when I have them. |
#7
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Re: Annoying Tranny stuff
Also check your ATF level. I have had my TC lock and unlock because the fluid was low.
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__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . |
#8
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Re: Annoying Tranny stuff
Hi all, sorry to hijack.
I know I have asked this before, but WHY oh WHY, does the transmission transmit SO MUCH heat into the cabin?? I drove for 2 hours today and by the time I got home, the coins in my ashtray we almost TOO HOT to touch!! I could feel heat blowing around my legs (I had shorts on, no shoes). I have a MEGA radiator, and transmission cooler fitted, but am still very concerned about this heat issue. The whole centre console seemed hot, including the stock CD and radio unit.
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1992 SVX Mica Red/Black (Ruby Pearl) (ADM)- 290,000 kms. With Koni adjustable front shocks, THRICE o/hauled 4EAT with transmission cooler and now the 'QUICK CHANGE' unit, custom PWR aluminium radiator, replacement water pump, fuel pump, crank pulley, Pioneer 6 x 9 rear and 6 inch front speakers, Sony Head unit, rattles from the front end and steering, front DBA slotted rotors. Blown heater core, ruined CV joints, new car park damage. FOR SALE... www.thebeatleboys.com |
#9
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Re: Annoying Tranny stuff
Hello Group,
I am pleased to report back that my converter lock-unlock problem has been cured by replacing the throttle position sensor. To everyone: Thank You Chip. |
#10
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Re: Annoying Tranny stuff
Chip did you end up getting one from a junk yard then? or did you end up paying full price for new?
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#11
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Re: Annoying Tranny stuff
Got one from AAA auto wrecking in Kent Wa.
I put their info in the junkyards/known sources thread. Oh, it was $25. |
#12
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Re: Annoying Tranny stuff
nice find
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