how do you know when your catalytic converter is stopped up

Asked by Sep 30, 2016 at 09:39 AM about the 2009 Chevrolet Silverado 1500 LTZ Crew Cab 4WD

Question type: Maintenance & Repair

My wifes 2009 LTZ Z71 5.3 with 120,000+ miles isn't as powerful as my brother-in-laws with the same engine. When going up hill it has to downshift a couple of times (like kicking in the passing gear) to keep the speed up, could this be the catalytic converter? The other day I was following my wife down the road and a puff of blue smoke came from the tailpipe, it doesnt do that at startup or reving the engine either. We've had several problems with this vehicle like the dash lights going crazy, door locks going on off and it starts jerking like crazy (almost like its posessed) until you pull off the road, turn it off, sit for a few minutes and then its fine...untill the next time. We have also put (2) new oil pressure units in it in the last month because of suposedly low oil pressure readings. I think it may be time to trade this thing in, she loves the truck but oh well. The kicker is, we bought the truck used 3-4 months ago and it ran fine for about a month.....aaarrrrrggggghhhhh!!! Our salesman said we could trade it back for total price we gave for it though so all is good. I would just really like to know if these problems can be fixed fairly easy before trading back?

No answers yet

Your Answer

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,660
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,440
#3 tenspeed
tenspeed
Reputation 1,350
View All

Related Models For Sale

Used GMC Sierra 1500
1,174 Great Deals out of 58,309 listings starting at $2,495
Used Ford F-150
3,443 Great Deals out of 206,231 listings starting at $1,273
Used Dodge Ram 1500
549 Great Deals out of 13,019 listings starting at $1,800
Used Chevrolet Silverado 2500HD
384 Great Deals out of 28,634 listings starting at $2,295
Used Toyota Tundra
706 Great Deals out of 28,578 listings starting at $2,500
Used Chevrolet Tahoe
1,102 Great Deals out of 31,960 listings starting at $1,495
Used Toyota Tacoma
799 Great Deals out of 33,979 listings starting at $2,499
Used Chevrolet Colorado
346 Great Deals out of 17,059 listings starting at $2,195
Used Ford F-250 Super Duty
488 Great Deals out of 42,909 listings starting at $2,850
Used Chevrolet Camaro
654 Great Deals out of 39,478 listings starting at $3,495
Used GMC Sierra 2500HD
133 Great Deals out of 13,587 listings starting at $1,500
Used Dodge Ram 2500
183 Great Deals out of 5,646 listings starting at $2,900

Used Cars For Sale

2016 Chevrolet Silverado 1500 LTZ Crew Cab 4WD For Sale
9 Great Deals out of 557 listings starting at $35,932
2015 Chevrolet Silverado 1500 LTZ Crew Cab 4WD For Sale
45 Great Deals out of 1,082 listings starting at $28,878
2014 Chevrolet Silverado 1500 LTZ Crew Cab 4WD For Sale
52 Great Deals out of 1,524 listings starting at $24,269
2013 Chevrolet Silverado 1500 LTZ Crew Cab 4WD For Sale
22 Great Deals out of 515 listings starting at $18,485