Temperature gauge pegs, but no smoke or warning lights

1998 TOYOTA COROLLA
120,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
JV2112
  • MEMBER
  • 1 POST
Greetings,

My car just started to peg the temperature gauge after a short time of use. I though maybe it was just a sensor gone bad. I have a Verizon HUM+ plugged into the OBD port and it reports nothing. As of yesterday, it sounds like a hole developed in the exhaust. Loud! And when slowing down, it sounds like it backfires a little. I figured I would take it in to get the muffler replaced, but the temperature issue has me concerned. Can it be as simple as replacing that 19mm sensor? Thanks!
Mar 30, 2019 at 3:54 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good evening,

Yes, it could be the sensor but I doubt it. It may be overheating and does not have to smoke or set a code.

https://www.2carpros.com/articles/symptoms-of-an-overheating-engine

Did you check the coolant level?

Roy
Mar 30, 2019 at 7:02 PM
Advertisement