the87hyper

I was wondering if something is wrong. 99 blazer 2dr ZR2, according to the owners manual the tank holds 19.0 gal. When my gauge is at E and the on board computer says low, I go and fill up. It will usually only take 13 or 14 gal., 14 if im lucky. Did the wonderful engineers at GM make a reserve this high or do i have other problems. Just filled the work truck 2002 s-10 p-up with a 2.2 same thing 13.544 gal. I also tried swaping the insturment clusters and get the same results. And yes i had a friend re- flash the odometer afterwards.

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1999 BLAZER ZR2
KENWOOD HEADUNIT KDC-415S
KENWOOD PS-150 AMP
JL AUDIO 10W6
BOSE SPEAKERS 6X9, 4X6
PARNELLI JONES DIRT GRIP 31 X 10.5 X 15
K&N FIPK COLD AIR INTAKE
APC CARBON FIBER TAIL LIGHTS

mike2004tct

Can't help on your question, but I can sympathise. My '97 shows Empty with 3.5 - 4 gallons left in the tank (also a 19 gallon tank that reads empty and takes only 15 gallons).

My family truckster, an '04 Chrysler Town & Country has the gas pump light go on on the cluster at 16 gallons for a 20 gallon tank.

An overall Gas Gauge Conspiracy by the Big 3??????

billibong

Mine does the same thing. I show very low and the Low Fuel light comes on when I need about 14 or 14.5 gallons.

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billibong
99 4X4 Blazer LS Vin W
Repairs:
U/L Ball Joints, I/O Tie Rod Ends, New Tie Rod Adjusting Sleeves, New Idler Arm, R & L Front Hubs, R & L Upper CA Bushings, New Gabriel Ultramax Shocks (what a difference)
F & R Brakes and Rotors at 110,000.
Infinity Speakers to replace the blown factory sets.
162K+ and still kicking.

BlazerBoyLT98

GM does this because if you run out of fuel you are more then likely going to suck some sludge off the bottom of your gas tank which is bad, or worse case scenario, fry your fuel pump as it uses the fuel to cool it self. So yes the gauge reads off but it is better it reads the way it does then if it read the other way!!!!!

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2002 Pontiac Gram Am
K&N Air Filter
Mobil1 5W-30 Extended 15K
2 JL Audio 12" Subs Sealed JL Audio Box
Coustic 400 Watt Class D Mono Amp
Pioneer Head Unit 50X4 MP3, WMA, AAC Super Tuner
Polk DB750 6.5" all around
Yankees Suck!!!!!!!!