Not a problem...but discovered something today.. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-27-2009, 12:24 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2008
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
2000binbc is on a distinguished road
Default Not a problem...but discovered something today..

...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
2000binbc is offline   Reply With Quote
Old 10-27-2009, 12:30 PM   #2
Senior Member
Posts like a Corvette
 
crunkfrunk's Avatar
 
Join Date: Jun 2008
Location: Cleveland, OH
Posts: 1,389
Thanks: 0
Thanked 0 Times in 0 Posts
crunkfrunk is on a distinguished road
Default

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
crunkfrunk is offline   Reply With Quote
Old 10-27-2009, 12:36 PM   #3
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

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.
Danthurs is offline   Reply With Quote
Old 10-27-2009, 01:23 PM   #4
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Try coasting in neutral on a level surface and see if it does the same thing.
2kg4u is offline   Reply With Quote
Old 10-27-2009, 01:50 PM   #5
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

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.
BillBoost37 is offline   Reply With Quote
Old 10-27-2009, 10:43 PM   #6
Senior Member
Posts like a Supercharger
 
Join Date: Sep 2005
Posts: 195
Thanks: 0
Thanked 6 Times in 5 Posts
imidazol97 is on a distinguished road
Default

Quote:
Originally Posted by BillBoost37 View Post
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.
imidazol97 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
New Element Discovered GXP Venom Lounge 7 03-24-2010 12:12 PM
Discovered Rock Auto not carrying MOPAR GunsOfNavarone Lounge 8 01-18-2010 07:09 PM
Largest woodpecker EVER discovered today. willwren Lounge 23 09-07-2006 01:09 PM
not good. NOT GOOD. (hit and run, not bad-BAD, but not good) repinS General GM Chat 13 11-26-2004 11:35 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:13 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.