car dropping 400 rpms wile driving

[devilsadvoc8]

When I was driving yesterday I noticed my car was bogging out and dropping about 400 rpms. Than picks back up. Any ideads.

 

[vicious151]

Does it bog out at higher RPM's or just randomly at any?

 

[Kevin4G63]

How often does it happen? I'm thinking misfire.

 

[devilsadvoc8]

It does it at all rpms. I'm wondering if its the tranny slipping cause the engine is in good shape. Also it is worse at some times

The engines not misfiring. I checked from the plugs to the coil each individually

 

[Kevin4G63]

If your tranny is slipping your rpm should go up right? Does your engine still has its power when it drops?

 

[devilsadvoc8]

OK. T kinda just feel like it wants to die. And yes I lose power. I noticed it happens the worst in 2nd and 3rd gear.

 

[awdtalon4451]

Same issues here. It does it reguardless how fast or what gear your in. Some more prone than others. When the rpms drop sometimes it bounces back very quick and others it bogs down and is in limbo for a split second. Another thing is when is it decides to drop the rpms or bog down, a quick tap of the gas brings it back up to normal. I'm leaning toward my IAC but I've heard a vacuum leak will cause this.

 

[95talongirl]

Any engine lights?

Since you're a N/A car; could be a MAP sensor, as well. Or it could be loosing the signal from the cam or crank sensor. Check those connectors out to make sure they are not oily, loose, or broken.