Chicky and Sprint

MadJack

MadJack

Administrator
Staff member
Forum Admin
Super Moderators
Channel Owner
Jul 13, 1999
106,191
2,396
113
71
home
The gas gauge on my Deville works fine until it drops below 1/2 tank and then it usually shoots straight back up and shows FULL. What's going on here? And, the other day the speedometer quit working for about 5 miles before it started working again. That's only happened the one time but the gas gauge screwed me up once and I ran out of gas. Any ideas or should I hit the Cadillac forums? I can live with it because for now on I'll fill back up at 1/2 tank but it's annoying.

TIA :0008
 
Old School

Old School

OVR
Forum Member
Mar 19, 2006
38,774
630
113
75
:0corn


The problem with the arratic fuel gauges on these cars can almost always be traced back to a faulty fuel level sensor in the tank. The sensor contact fingers are very thin and tend to break off over time, which causes erratic readings from the sensor. Replacement fuel level sensors are available separately from the fuel pump. The fuel tank does not need to be removed from the vehicle for this repair. There is an access panel at the front of the trunk, behind the back seat. Pull the trunk carpet back to get to the access panel

Read more: http://www.justanswer.com/cadillac/...-gas-gauge-reads-correctly.html#ixzz3hDBlyxwj
 
MadJack

MadJack

Administrator
Staff member
Forum Admin
Super Moderators
Channel Owner
Jul 13, 1999
106,191
2,396
113
71
home
Old School said:
:0corn


The problem with the arratic fuel gauges on these cars can almost always be traced back to a faulty fuel level sensor in the tank. The sensor contact fingers are very thin and tend to break off over time, which causes erratic readings from the sensor. Replacement fuel level sensors are available separately from the fuel pump. The fuel tank does not need to be removed from the vehicle for this repair. There is an access panel at the front of the trunk, behind the back seat. Pull the trunk carpet back to get to the access panel

Read more: http://www.justanswer.com/cadillac/...-gas-gauge-reads-correctly.html#ixzz3hDBlyxwj
Click to expand...

Thanks man.

Sweet. It's easy to do your own work on cars. Who woulda known? :0003
 
PAChicky

PAChicky

Bee
Forum Member
Feb 7, 2013
2,039
48
0
49
Central Pa
www.facebook.com
MadJack said:
The gas gauge on my Deville works fine until it drops below 1/2 tank and then it usually shoots straight back up and shows FULL. What's going on here? And, the other day the speedometer quit working for about 5 miles before it started working again. That's only happened the one time but the gas gauge screwed me up once and I ran out of gas. Any ideas or should I hit the Cadillac forums? I can live with it because for now on I'll fill back up at 1/2 tank but it's annoying.

TIA :0008
Click to expand...

He'll probably look at this later since he's working but since I'm sitting in the office watching Netflix, let's see how close I am with my "knowledge".

I think you have a bad sender/floater, which is probably in the fuel pump module which is located in the fuel tank. The sender is a plastic float on the bottom of the fuel pump module- I'll attach a picture. As the gas goes down the floater lowers and pulls your gas gauge down. Possibly there was some sediment in the tank and it got lodged in there and held the floater until it dislodged since it only happened once? If it becomes a re-occuring issue if you can gauge your mileage and fill it up every so often that would save you the money on replacing the module. My guess is you have to pull the tank to get to it and those kind of jobs suck. $$$.

Now when he gets home and veggies out on the couch later I'll remind him to look at this post.

This is a general image from the internet......
 

Attachments

  • e3688m.jpg
    e3688m.jpg
    55.5 KB · Views: 0
MadJack

MadJack

Administrator
Staff member
Forum Admin
Super Moderators
Channel Owner
Jul 13, 1999
106,191
2,396
113
71
home
PAChicky said:
He'll probably look at this later since he's working but since I'm sitting in the office watching Netflix, let's see how close I am with my "knowledge".

I think you have a bad sender/floater, which is probably in the fuel pump module which is located in the fuel tank. The sender is a plastic float on the bottom of the fuel pump module- I'll attach a picture. As the gas goes down the floater lowers and pulls your gas gauge down. Possibly there was some sediment in the tank and it got lodged in there and held the floater until it dislodged since it only happened once? If it becomes a re-occuring issue if you can gauge your mileage and fill it up every so often that would save you the money on replacing the module. My guess is you have to pull the tank to get to it and those kind of jobs suck. $$$.

Now when he gets home and veggies out on the couch later I'll remind him to look at this post.

This is a general image from the internet......
Click to expand...

No, it happens all the time.

The speedometer not working only happened once.
 
vinnie

vinnie

la vita ? buona
Forum Member
Sep 11, 2000
59,163
212
0
Here
xstopbuy a new car :0008 problem fixed :0074 ur welcome :thefinger
 
PAChicky

PAChicky

Bee
Forum Member
Feb 7, 2013
2,039
48
0
49
Central Pa
www.facebook.com
My bad- I just reread it again. The speedometer I'm guessing is controlled by the throttle cable. I have no knowledge there.

If you access the fuel pump module from the back seat then that is not what I'm used to since most jobs the tank has to be dropped. That's why I said "knowledge". LOL

Just an FYI for any of the guys who think I don't know my ass from a hole in the ground..............I sit in the office and order the parts that I'm told we need to do a job- I'm not in the garage doing the work. Although in the last 13 years I have been here I have learned a hell of a lot, so sometimes I do know what I'm talking about and sometimes I don't. Just putting that disclaimer out there. :0074
 
Old School

Old School

OVR
Forum Member
Mar 19, 2006
38,774
630
113
75
ya ain't around all that exhaust and conversation and not learn quite a bit.:0074
 
THE KOD

THE KOD

Registered
Forum Member
Nov 16, 2001
42,564
315
83
Victory Lane
One time I had a old ford and it had a fuel pump that went bad.

thinking I could save money I got a neighbor mechanic guy and asked if he would help me fix it . He said sure, get the parts and I will do it Saturday.


Get the parts and he has to let down the gas tank down to get to it.

when the tank came down, it was full of gas about 20 gallons.


it flooded out his garage and stunk for months.


its always nice to get a friend to help out .
 
THE KOD

THE KOD

Registered
Forum Member
Nov 16, 2001
42,564
315
83
Victory Lane
PAChicky said:
Just an FYI for any of the guys who think I don't know my ass from a hole in the ground..............I sit in the office and order the parts that I'm told we need to do a job- I'm not in the garage doing the work. Although in the last 13 years I have been here I have learned a hell of a lot, so sometimes I do know what I'm talking about and sometimes I don't. Just putting that disclaimer out there. :0074
Click to expand...



thanks for the heads up


before you came along I was the one who would step up with car information


fixed many that had clankity clank clank type problems.


and what do I get for it. Sportsaholic is named a Adm.


oh hell to the NO !
 
gardenweasel

gardenweasel

el guapo
Forum Member
Jan 10, 2002
40,611
255
83
"the bunker"
something electrical happens and I always try changing fuses before I do anything else:lol:.....usually the whole f`ing dashboard`ll go out,but who knows?....would take about 5 minutes to check.........:shrug:.
 
You must log in or register to reply here.
Bet on MyBookie
Top