1.6 GLi AUTO (vibration problems)

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1.6 GLi AUTO (vibration problems)

Dear All
I have a 1999 Corolla 1.6 GLi AUTO. Its on CNG since 1 year. Mashallah no problems while driving on D. But as soon I stop my car on D. The car starts to vibrate. these days its vibrating too much. And if in the same D position if i move to N or P position the car becomes calm in that idle position. I know this is a problem in AUTO Tranny on CNG.

But any ideas how to minimise the vibration ?

The idle minimum RPM on N and P is always 1000rpm while on D it drops tpp 900-800. I have installed tomesato EFI CNG Kit. Is their any concern with the advancer or emulator . I also have changed my spark plugs New air filter.

Do any of you any gud mechanic for AUTO Tranny's in Karachi ?

Gari.pk User 3814 asked on 08 Jul 2010 13:08:11 pm

1 Answer

266 views |

Konain - on 08 Jul 2010 13:08:22 pm

Hello!
looks like engine was getting more load while on D as compared to other ratios of Auto Trannny....!
Engine Vibration on CNG is Common on low rpms....!try increasing its idle RPM a bit while on D.......!
what about Auto Tranny Fluid level?? and how much Km's it done since you replace oil........?
check fluid level and also the oil condition.....if it needs changing...change it....!
Thanxx