Question about 1988 Cadillac Eldorado

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My fuel gauge reads liters how do i change to gallons 1988 cadillac seville

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There isa button on your Info display center next to the fuel reset button that changes from lires to gallons.

Posted on Jul 10, 2010

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Posted on Jan 02, 2017

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1997 Cadillac Eldorado fuel gauge not reading fuel level correctly


Did you test before replacing ? Do you know how it work's ?

Fuel Level
The body control module (PZM) monitors the fuel level sender input in order to determine the current fuel level. The PZM filters the input and sends a message via the Class 2 serial data line. The IPC receives this message and displays the current fuel level. The fuel level is sent from the PZM to the IPC at changes of 0.5 L (0.02 gal) or on the request of the IPC, with a resolution of 0.04 L (0.01 gal).
• For the digital IPC, when the fuel level is above 18.5 gal, the IPC displays an F. For readings between 18.5-2.5 gal, whole gallon/liter numbers are displayed. When the fuel level reaches 3.0 gal the message FUEL LEVEL LOW is displayed on the driver message center. When the fuel level reaches 2.5 gal, the IPC displays an E. When the fuel level is 1.2 gal or below the IPC displays a flashing E.
• For the analog IPC, when the fuel level is above 18.5 gal, the fuel gauge pointer is on F. When the fuel level is below 2.5 gal the fuel gauge pointer moves to E. When the fuel level is below 3.0 gal the IPC displays a FUEL LEVEL LOW message.
If the updates are not received or a communication error is detected, the IPC performs the following actions:
• For the digital IPC, the fuel gauge is dashed.
• For the analog IPC, the fuel gauge pointer moves to E.

Fuel Gage Inaccurate or Inoperative
Circuit Description
The IPC monitors the fuel level sent by the PZM through the class 2 serial data line. The IPC software controls one of the following two gauge types:
• A digital gauge consisting if a two-digit numeric seven-segment display
• An analog gauge consisting of a needle pointer.
The IPC interpolates and scales the fuel level information that the IPC receives from the PZM.
When you operate the vehicle in diagnostic mode, either in the vehicle diagnostic system or with a scan tool connected, the fuel signal supplied to the IPC is not filtered by the PZM. The unfiltered fuel signal causes the IPC to show real time readings and may be mistaken as an erratic fuel level display.
Diagnostic Aids
Connect a scan tool to the DLC.

Oct 12, 2017 | Cadillac Cars & Trucks

1 Answer

How to change liters to gallons


One US gallon is about 3.785 liters. One UK gallon is about 4.546 liters.

Feb 06, 2014 | 1989 Cadillac Seville

1 Answer

Hi i have a 1988 cadilliac seville changed the therstat on it it reads some times 150 to 170 degree but a lot of time it only reads only 120 degree the main top hose is only warm and it idles realy high...


it should go to 195 degrees if new
either the coolant galeries areplugged up somewhere
it can be from the heater core
radiator
engine block or heads
a collasped hose will do that also keeping the temperature down
ever a bad seal on the overflow tank or radiatop too

Nov 21, 2010 | 1988 Cadillac Seville

1 Answer

How do i change the headligts on a 1988 cadillac seville elegante?


look behind the headlight disconnect the headlight turn the plastic nut counter clockwise1/4 turn pull headlight out

Nov 04, 2010 | 1988 Cadillac Seville

1 Answer

1988 Seville: how do i get my 88 cadillac seville to start when ...


new starter if the information center does NOT say started disabled due to anti theft system

May 18, 2010 | 1988 Cadillac Seville

1 Answer

1998 cadillac seville feul gauge doesnt register just filled up o reading


Most likely your fuel sending unit or the wiring to it. its located on your fuel tank. the tank will have to be dropped to replace it.

Jan 29, 2010 | 1992 Cadillac Eldorado

1 Answer

I need a diagram showing spark plug wires from the distributer to the plugs. i also need a diagram showing where all connections under steer wheel go to


1988 Cadillac Seville 4.5 liter V-8 VIN "5"

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For more details about other conections, I suggest visit autozone.com (free register) and review the lot information about your model.

Hope helped with this (remember rated this help) Good luck.

Nov 26, 2009 | 1988 Cadillac Seville

1 Answer

Fuel gage computer problems


fuel gauge is controlled by a sending unit in the gas tank.

Nov 14, 2008 | 1990 Cadillac SeVille

1 Answer

91 deville fuel gauge flashes "E"


It seems that you are low on fuel based on you saying 70 miles in the range gauge. If this problem does not happen with 3 gallons of fuel or more then it is normal. The range is calculated on your average MPG and gallons of fuel in the tank. When the car gets to around 2 gallons it does not chance miscalculating your miles to empty and leave you on the side of the road. At this point he tank will read "E" to let you know it is time to fuel up. The flashing "E" is simply cadillac's way to get your attention that you are in fact low on fuel and need to take action. Hope this helps.

Nov 02, 2008 | 1991 Cadillac DeVille

1 Answer

1993 seville automatic transmission V8 4.9 liter?


neither the 93 seville is just that it's the 4.9 liter before the northstar sts 4.6 came out in same year

Jul 31, 2008 | 1993 Cadillac Seville

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