My 2000 Hyundai Elantra's transmission started slipping at around 20-30 mph if i accelerate very slowly it will change gears normally if not it will rev and when it finally catches it hits pretty hard when slowing down at around 5 mph it will sometimes hit hard again most recently i was parked and went to back out and the reverse would not work it just revs i had to push it out of the parking space i wasin 3 other parking lots that mourning and it worked fine if i need a new transmission which i figure i will i could use an estimate on about how much it will cost to fix it.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
First of all, are you able to rev up the motor soon after starting to let's say 3000 rpm's? And I mean easily! If not, then it's not in your drivetrain (engine/transmission), but more likely perhaps stuck brakes or slipping
Your transmission fluid is dangerously low (tranny is dry). The pops & jerks are the transmission internal components trying not to seize onto each other due to lack of lubrication and/or overheating. Low transmission fluid leads not only to loss of lubrication but lots of overheating (of the tranny). The loss of Elantra performance (speed tops out at 55), is caused by power loss due to friction inside the transmission. All your power is lost overheating the transmission (toward destruction), instead of being transmitted through the transmission to the wheels.
The 2004 Elantra takes Hyundai SP-III Automatic Transmission Fluid, with 8.4 quarts used in a total refill - but just 5 quarts at a fluid change. For How-to transmission fluid change instructions:
www.autozone.com claims that 2004 Hyundai Elantra can take these non-Hyundai ATF's: Lucas Semi-Synthetic Multivehicle ATF Pennzoil Muilt Vehicle ATF Valvoline Maxlife Dex/Merc ATF Castrol High Mileage ATF
P0734 means that your transmission is slipping. This being the case, it is not surprising that the gas mileage is poor. You will need to have your transmission checked out professionally. Take it to a trustworthy transmission mechanic or to a dealer. Get a second opinion before you have any work done.
Since you did not say what type of transmission you have i will suspect the clutch is slipping if it's a manual. If it's an automatic, it could be several things. Low fluid level...clogged filter, fluid needs to be changed..transmission serviced...weak pump, bands/clutch packs worn...etc Good luck..i hope this helps, please rate me a fixya.
I had a car that did this to me. It started happening last year so I took it in and they were baffled. Lesson learned never take a car to a big chain store for a difficult diagnosis.They just told me to let my car warm up for 5 minutes and it would be fine. If I let it warm up it was good. This winter it started doing it again but it would do it all the time even after I let it warm up. I never bothered bringing it in again because it was dieing. If you are truly concerned take it into a mechanic ( a good one) and have them diagnose it. Your spedometer cable could just be wearing out.