THERMOSTAT AND FUEL GAUGE PEGGED HOT AND FULL

Asked by Sep 21, 2014 at 03:06 PM about the 2002 Saturn L-Series 4 Dr L300 Sedan

Question type: Maintenance & Repair

STARTED THE CAR ONE DAY AFTER IT WAS ONLY RAN A COUPLE MINUTES
(CAR WAS NOT OVERHEATING) CAR WENT FROM EMPTY ALMOST TO
COMPLETELY FULL, THE THERMOSTAT LIGHT CAME ON AND THE
THERMOSTAT GAUGE WAS PEGGED HOT.... PUT SCANNER ON IT AND IT SAID
ERROR CODE U2105 PLUS THE EGR AND EVAP SYMBOL WAS FLASHING

THIS CAR WILL START SOMETIMES BUT NOT ALWAYS, TO GET TO START I
HAVE TO DISCONNECT AND RECONNECT THE BATTERY CABLE FOR THE CAR
THEN IT MAKES A LOUD HIGH PITCH NOISE UNDER THE HOOD AND STARTS
RIGHT UP.

WHAT DO I DO ???? AND IF IT IS A STUCK THERMOSTAT DOES THE INTAKE
MANIFOLD NEED TO COME OFF???

1 Answer

62,985

Sounds like you have a wire for the instrument cluster that's shorted to ground. In other words a bare spot on a wire is touching something metal and forcing the temperature gauge to hot and the fuel gauge to full. It could also be a bad printed circuit on the back of the instrument cluster. HTH. -Jim

Your Answer

Add photo

Related Questions

  • I want to improve my SL2 21 answers

    My SL2 is getting up there in mileage and I might soon be relying on it to drive to a job 4 hours away ever week (and back). I was wondering if there's things I can do to help improve it's fuel and...

    2002 Saturn S-Series 4 Dr SL2 Sedan

    -

    Car Customization

  • Temperature gauge going up and down 91 answers

    I recently bought a 99 infiniti i30 and it runs good but for some reason the temperature gauge keeps going up and down even 2 minutes up the road when I leave in the morning it does it. It's not overh...

    1999 INFINITI I30

    -

    Maintenance & Repair

  • Need to replace thermostat. Which is the correct one 160 , 180 or 195 degrees and what manufacture? 25 answers

    My car is running too hot. I want to change the thermostat first then maybe the water pump or the fan clutch?

    1986 Ford Mustang GT Convertible

    -

    Maintenance & Repair

  • Also, have a 1997 trans-am running hot 13 answers

    Car runs great any speeds above 40 or 50mph. But once at freeway speeds for around 20 or 30 mintues, then incounters stop & go traffic, the temp will creep up, during the stop goes to over 240 and...

    Pontiac

    -

    Maintenance & Repair

  • wont start when hot 17 answers

    car tends to cut out when it gets hot, often stranding me till it cools down

    1993 Ford Mustang

    -

    Maintenance & Repair

Search Saturn L-Series Questions

Saturn L-Series Experts

#1 Ephram Rubin
Ephram Rubin
Reputation 900
#2 FordNut
FordNut
Reputation 440
#3 Tom Demyan
Tom Demyan
Reputation 350
View All

Related Models For Sale

Used Saturn S-Series
800 listings starting at $995
Used Saturn ION
3 Great Deals out of 1,180 listings starting at $1,995
Used Honda Civic
510 Great Deals out of 81,586 listings starting at $558
Used Saturn VUE
35 Great Deals out of 1,994 listings starting at $1,495
Used Toyota Camry
883 Great Deals out of 92,127 listings starting at $1,300
Used Chevrolet Malibu
809 Great Deals out of 88,732 listings starting at $1,900
Used Saturn L300
77 listings starting at $1,999
Used Ford Focus
565 Great Deals out of 55,841 listings starting at $1,495
Used GMC Yukon
404 Great Deals out of 16,365 listings starting at $1,800
Used Toyota Corolla
762 Great Deals out of 75,278 listings starting at $1,790
Used Ford Taurus
195 Great Deals out of 19,339 listings starting at $500
Used BMW 3 Series
1,118 Great Deals out of 35,564 listings starting at $900