RPM drop when accelerating while low rpms.
#1
RPM drop when accelerating while low rpms.
Hey guys, recently my car has been experiencing a rpm drop when my rpm is currently at roughly 600-700rpm area. For the most part, while i'm at a complete stop and have to accelerate again to get going.
The rpms drop to below 500 and and feels like it's about to stall then it gets moving with a surge.
Once the car is moving however, the problem seems to go away.
Now, it might be a coincidence, but this started to happen right about after when i turned on the A/C with the nice heat blast we got in NYC recently.
The problem still happens now with the A/C off...
This is on an 99' auto, had misfires on a cylinder before but that was due to bad ignition coils and that was changed out along with all spark plugs. This was maybe a year back now - but this rpm issue is new and never happened before.
Any ideas?
The rpms drop to below 500 and and feels like it's about to stall then it gets moving with a surge.
Once the car is moving however, the problem seems to go away.
Now, it might be a coincidence, but this started to happen right about after when i turned on the A/C with the nice heat blast we got in NYC recently.
The problem still happens now with the A/C off...
This is on an 99' auto, had misfires on a cylinder before but that was due to bad ignition coils and that was changed out along with all spark plugs. This was maybe a year back now - but this rpm issue is new and never happened before.
Any ideas?
#6
Interesting, never heard of a alternator causing power loss before aside from dash lights coming up then sudden death. But will check it out and I guess the belts while I'm at it, maybe something is seizing and dragging it at the start?...
No surging and no codes. Will try cleaning the parts out this weekend, thanks.
Last edited by hito; 05-03-2010 at 08:41 PM.
#12
Clean MAF,Check/Change Plugs, CHange Oil, Check Coils, Clean your Air Filter, Change your Fuel Filter, Dont Hijack Threads.
#13
Okay, since my last reply, the car seems to be running fine again... BEFORE I even did anything...
However, my check engine light did come up - it was the O2 sensor indicating bank 2 sensor 2. Just went and changed it out, didn't want to chance my car stalling if that was the culprit.
Lets see what happens...
However, my check engine light did come up - it was the O2 sensor indicating bank 2 sensor 2. Just went and changed it out, didn't want to chance my car stalling if that was the culprit.
Lets see what happens...
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