Thank you for the answers.
Yes, OD mean the Overdrive. What I am trying to establish is if this is an engine or trans related problem.
If it is possible, I would like you to note the engine rpm at the speed it is hesitating. Turn the OD off and try to run vehicle at lower speed with engine rpm similar to with Od on. Note if problem arises.
For auto trans, engine hesitation usually are not felt as the torque converter is able to reduce the impact and if it is felt, the hesitation should be quite bad.
When the hesitation appears, does it occurs repeatedly while you maintain the speed range?
Does it happen only when you are accelerating or does it happen even while cruising, maintaining constant accelerator pressure?
How long has this problem been going on and what have you done before and after it has been noted?
When was the auto trans fluid last checked? How was its level and consition?
What is the engine type on your vehicle?
Sunday, May 3rd, 2009 AT 9:32 AM