...hey guys. I have a discovery to share with you all. Well... it'* a discovery for me atleast eventho some of you might have already noticed this as well. On my way to work today I was driving along at about 80km/h no traffic in front of me and on a slight decline hill and I put the car in neutral for a few seconds. No not to save gas :P I've had to do this time to time when my gimpy crank sensor shuts the car off while I'm driving. I did this little experiment today to confirm a suspicion I saw a few days ago when my car stalled on me while driving and I had to jam it in neutral and restart while driving. Has anyone else noticed that if you put the car in neutral the fuel gauge goes up slightly, sometimes it'* quite a bit.. neverhtless it'* a noticeable change and it'* funny to see the gauge creeping up when the car is put in neutral. After I put it back in drive, the gauge will stay at the new reading for a little while till I come to a stop at a traffic light and then it will go back to down to the level it was indicating before I had put it in neutral. Has anyone else noticed this? Why does this happen? Is it something to do with the fuel pressure I guess. Just a general question/wondering I had. Have a good day u guys

ps - 2000 Bonneville SSEI is what I drive

I think it might be your level sender going bad, since you were on an incline the float might have moved a little since the fuel shifted in the tank, actually your sender is probably fine just being on the incline did it

Could also be how the PCM reacts to the signal sent by the sender dependent on if it'* in drive or neutral. When driving you don't want the gauge moving all over as the gas sloshes around in the tank.

Try coasting in neutral on a level surface and see if it does the same thing.

I noted that on my pickup. I knew it had a bad sender, going down the road you'd notice it hit E and stay there. If you bumped to neutral or park for something it would instantly change to the proper level.

Here'* the why. When the car is in motion the pcm limits the amount of movement over time to keep you from seeing stop and go sloshing that occurs. Gives you a truer reading of what is in your fuel tank. In N or P, the pcm shows real time data.

Now that'* great to know. Interesting. Isn't there a similar buffering system on the temp sensor for external temp on the climate control system.