why is the trac light on?


Asked by Nov 10, 2014 at 11:49 PM about the 2000 Pontiac Montana

Question type: Maintenance & Repair

2 Answers


Is it just the trac light? Or is it the ABS brake light as well? It's either going to be a bad wheel bearing, because the Trac control works with the ABS and both sensors are built into the bearing, or the wire that plugs into the wheel bearing is broke, rubbed through or shorted out. Very common problem with the GM vans and W platform vehicles (Grand prix, Impala, Monte Carlo ect)


Ok. Service Engine Soon light was/is on. Code came up po449. Replaced evap. emission vent valve solenoid. Also removed air filter and blew out lots of dirt/ sprayed throttle body out real good. Disconnected battery for 10 minutes, reconnected, turned ignition key to on position, pumped accelerator pedal slowly 3 times within 5 secs. turned key off 5 secs., then started 2004 Pontiac Montana up and not only is service eng. soon light on, but service traction and trac off lights are both on and car runs terrible, but ran perfect before any of my obviously inferior handywork and I've been working on cars for over 45 years!

Your Answer

Add photo

Related Questions

Search Pontiac Montana Questions

Pontiac Montana Experts

#1 Countrygal77
Reputation 1,710
#2 Robert Reed
Robert Reed
Reputation 1,300
#3 DaveG
Reputation 650
View All

Related Models For Sale

Used Honda Odyssey"
419 Great Deals out of 26,608 listings starting at $500
Used Chrysler Town & Country"
839 Great Deals out of 22,494 listings starting at $1,495
Used Dodge Grand Caravan"
427 Great Deals out of 30,463 listings starting at $1,650
Used Oldsmobile Silhouette"
269 listings starting at $2,225
Used Toyota Corolla"
1,468 Great Deals out of 67,797 listings starting at $1,295
Used Pontiac Bonneville"
861 listings starting at $1,450
Used Toyota Camry"
1,651 Great Deals out of 98,959 listings starting at $895
Used Toyota Sienna"
365 Great Deals out of 25,964 listings starting at $600
Used Dodge Caravan"
1,069 listings starting at $2,950

Used Cars For Sale

2001 Pontiac Montana For Sale
57 listings starting at $525