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1997 Hyundai Elantra high RPM when shifting gear

Tiny
WAEL85
  • MEMBER
  • 1997 HYUNDAI ELANTRA
  • 1.5L
  • 4 CYL
  • 2WD
  • MANUAL
  • 120,000 MILES
When I drive the car and try to shift into higher gear or lower one I press the clcomparison with all similar car.
Pedal to shift gear but I noticed that the engine rpm is at 1500 to 2000 and not slowly drop to750 rpm to move on next gear.
so the rpm should drop down to idle. But in my car it takes more time to drop in comparison with similar car.
I have no trouble codes everything seems OK.
I have tried to drive another cars like mine and they all seem good and none of them has a problem in driving like mine.
please help me solve the problem.
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Tuesday, August 19th, 2014 AT 9:20 AM

7 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try cleaning throttle plate on both sides and iac hole with choke cleaner
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Tuesday, August 19th, 2014 AT 9:32 AM
Tiny
WAEL85
  • MEMBER
  • 5 POSTS
I have cleaned throttle body million times and cleaned the iac. Even I have tried another iac but the problem is still on.
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Tuesday, August 19th, 2014 AT 9:42 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Ok then check for a vacuum leak, hoses off, split cracked and around intake manifold also check fuel pressure with a gauge
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Tuesday, August 19th, 2014 AT 12:27 PM
Tiny
WAEL85
  • MEMBER
  • 5 POSTS
Thank you for your reply.
But trusproblemhave done all of what you have mentioned.
And also I replaced head gasket, intake manifold
gasket and throttle body gasket.
So I dont think the reason of that problem is because of a vaccum leak.
Thank you for your patience.
Are there any other possible reasons for my car problem?
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Tuesday, August 19th, 2014 AT 12:50 PM
Tiny
WAEL85
  • MEMBER
  • 5 POSTS
Sorry about spelling mistakes.
Its because of the keypad in my mobile phone.
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Tuesday, August 19th, 2014 AT 12:53 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This is the only thing I can think of check intake vacuum at idle if 15" or below suspect a clogged exhaust system. I can't think of anything else unless I physically looked at it.
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Tuesday, August 19th, 2014 AT 2:11 PM
Tiny
WAEL85
  • MEMBER
  • 5 POSTS
Thanks again for replying.
If you remember something else to help me in my car, just send it.

Thank you.
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Tuesday, August 19th, 2014 AT 2:22 PM

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