98 chevy 1500 4x4 sle changing out the muffler do you need the oxygen sensor?

Asked by Dec 21, 2015 at 02:11 AM about the 1998 GMC Sierra 1500 C1500 SLE Extended Cab LB

Question type: Maintenance & Repair

doyou need the oxygen sensors to keep the truck running when I change out the muffler? or can I remove them and the catalytic muffler?

1 Answer

60,985

Yes you need the oxygen sensors and catalytic converter. You can install what is called a cat-back system where everything behind the converter is replaced and if you want you can also install a high flow catalytic converter. Without the O2 sensors your engine will not get the correct air/fuel mixture.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • I have a 2006 gmc 2006 4x4 sierra sle 3 answers

    I took my truck to Chevrolet dealership to have it fixed.. The plugs and wires , intake gaskets changed, 4 02 sensors. Still idling rough and misses a little going down the road once in awhile. T...

    2006 GMC Sierra 1500 SL1 Extended Cab 4WD 6.5 ft. SB

    -

    Maintenance & Repair

  • rough idle, stalling, loss of power. 228 answers

    o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so. I don't think its the torqu...

    1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab Stepside SB

    -

    Maintenance & Repair

  • 2006 sle gmc sierra 5.3. Vin T. 4x4 1 answer

    Having trouble still with my truck. Still run lean and seem to be missing on the the left bank. Ck wires, plugs, injectors,coils, replaced intake gaskets,map sensor, 4 o2 sensors,ck compressions, ...

    2006 GMC Sierra 1500 SLE1 Extended Cab 4WD 5.8 ft. SB

    -

    Maintenance & Repair

  • started stalling and dying when in gear 90 answers

    350 motor 4L60E trans Motor wants to stall while in gear (but doesn't do it out of gear once over 1000 rpm it dosent) seem to stall and it is only from a dead stop. Fuel filter has been replaced an...

    1994 GMC Sierra 1500 C1500 SLE Extended Cab SB

    -

    Maintenance & Repair

  • Why dose my jimmy 4x4 used so much gas 2 answers

    Why dose my 1997 4x4 gmc jimmy sle crossover, use so my gas

    1997 GMC Jimmy 4 Dr SLE 4WD SUV

    -

    Maintenance & Repair

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 5,010
#2 John Saffrahn
John Saffrahn
Reputation 3,540
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,150
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,718 Great Deals out of 175,749 listings starting at $1,250
Used Ford F-150
2,191 Great Deals out of 206,316 listings starting at $1,499
Used Dodge Ram 1500
454 Great Deals out of 11,152 listings starting at $700
Used Toyota Tacoma
541 Great Deals out of 40,814 listings starting at $2,495
Used GMC Yukon
374 Great Deals out of 18,226 listings starting at $2,950
Used Chevrolet Tahoe
548 Great Deals out of 29,234 listings starting at $1,699
Used Ford F-250 Super Duty
343 Great Deals out of 46,938 listings starting at $1,895
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
43 Great Deals out of 44,111 listings starting at $20,121
2016 GMC Sierra 1500 For Sale
78 Great Deals out of 3,645 listings starting at $17,888
2015 GMC Sierra 1500 For Sale
102 Great Deals out of 3,926 listings starting at $15,400
2014 GMC Sierra 1500 For Sale
116 Great Deals out of 4,152 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
66 Great Deals out of 2,009 listings starting at $9,600

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.