Vehicle runs great and shifts great on highway but when driven locally the transmission acts up and vehicle losses power ,it mostly happens when driven around at 35 or 40 mph.Could this be a shift switch on transmission?If so is this a outer part on transmision ?can it be done at home?
SOURCE: 2000 Hyundai Elantra Transmission problem
I don't know if I can help but as an owner of a Hyundai Elantra 2000 GLS with 205,000 miles and the original clutch and transmission I'll try and help!
I always start with the lowest cost solution first and avoid mechanics as much as possible!
Have you checked the trans fluid?
It should be changed every 30,000 miles!
Sometimes a Lucas Trans Fluid will cure - fix slippage!
Have you checked for a clutch adjustmet!
An adjustment can cure - fix slippage!
Are you a clutch rider with your foot always on the clutch?
If so you may have worn out the clutch!
How many miles to you have on your Hyundai Elantra 2000?
SOURCE: hyundai sonata jolt
if this happen when traveling at a constant speed it could be feul related.check feul pump pressure and replace feul filter
SOURCE: 2002 hyundai accent.transmission works great
Hi
Well two of the tranny codes ; P0734 and PO732 indicate gear 2,3,4 ratio incorrect. This can be caused by poor readings at the input and output speed sensors or pulse generators. The P1709 code is in reference to the kickdown servo switch.
Replacing the pulse generator set and TCM reprogramming( as per TSB) may solve your problem, otherwise you have a major component failure in the transmission unit. I would get some line pressures at the transmission checked first.
Sounds like the transmission is in fail safe mode, this happens when there is a transmission fault, you only have two gears 2nd and reverse.
Hope this helps - Steve
SOURCE: Help! 2003 Hyundai Accent problems. Transmission??
well the first thing you need to do is to pull the stored codes in the computer and see what they say and then go from there, this could be a speed sensor or a trany going bad , i dont know if this is an automatic or standard trany, start with the codes from the check engine light, autozone car parts store will scan the computer at no charge,
This stuff works GREAT! You can buy it at any local auto part store for about $12. I added it to my 2001 Sonata that was shifting had from 3 to 4 (on the highway). I copied this info from there website. Google it and you'll find tons of reviews, all of which are good.
What Is Lucas Transmission
Fix?
Lucas Transmission Fix is
a thermal stable blend of petroleum extracted additives. It contains
no solvents or anything else that would be harmful to an automatic
transmission. It contains a seal conditioner to help stop leaks
around seals. It contains a polymetric film which is designed to
stop worn bands from slipping. It allows the the transmission fluid
to run cooler and controls foaming. It mixes with all automatic
transmission fluids. It also contains lubricity agents for smooth,
precise shifting. Lucas transmission fix extends existing transmission
fluid life up to 3x.
What can Lucas Transmission
Fix do for my vehicle?
How much Lucas Transmission
Fix do I need?
One 24 ounce bottle is all you need. Lucas Transmission Fix will not fix a mechanically unsound transmission. If you have slipping and/or shifting issues this product will help.
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