Acceleration Problems

RYANKINGS

MEMBER
NISSAN 240SX

2001 Infiniti QX4, 3.3L V6

Problem: when first accelerating the vehicle gears 1 and 2 do not respond correctly, there is an attempt to switch gears and pause and then a very abrupt change. With a bit of a rev in the engine during the pause.

After a few minutes, the changes become smooth and normal. The check engine light is on which seems to come on about everyday, whether something is wrong or not. When the light is off the problem persists.

Any ideas?

Ry

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

What is this an auto or manual transmission

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Friday, April 13th, 2007 AT 5:55 AM

RYANKINGS

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5 POSTS

Auto transmission

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Friday, April 13th, 2007 AT 7:40 AM

RASMATAZ

MECHANIC
75,992 POSTS

Have the coolant temperature, throttle position, and vehicle speed sensors check. The computer takes these signals puts it all together and activates the shifting solenoids for the up and down shifts.

Now the question-when was the last fluid and filter changed.

Good Luck!

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Friday, April 13th, 2007 AT 8:43 AM

RYANKINGS

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5 POSTS

It is at about 8000 kms (semi-synth) on the oil and needs to be changed, but this is not a new problem, it just seems to have gotten worse lately, it has always had a bit of this problem since I purchased it at 80,000 kms, it now has 220,000.
It is going in on monday to the mechanic.

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Friday, April 13th, 2007 AT 10:41 AM

RYANKINGS