I have a 1994 GMC K1500 5.7L, the previous owners switched from the standard exhaust system to headers. How do you properly change from a standard exhaust system to a header system??

Asked by Sep 11, 2014 at 09:05 PM about the 1994 GMC Sierra C/K 1500

Question type: Maintenance & Repair

We are having issues with power loss and cannot find what is causing it. We are finding
many different things that were disconnected and removed that probably should have
stayed on.

5 Answers

34,165

Good luck. It's not easy to give you a good answer here. Check the vacuum lines that are not disconnected. Start there.

18,475

Well. You need of sensors. If they aren't there then that's one problem

We have checked a lot of sensors on the truck MAP, EGR, Throttle position..etc. Is there a way to find a complete list of sensors that should be on the truck?? We changed out the plugs, wires, button, and cap today and checked the fuel pressure, everything looked good

As far as we know all vacuum lines have been checked and are good

18,475

you need to make sure you have the o2 sensors still

Your Answer

Add photo

Related Questions

Sierra C/K 1500

Looking for a Used Sierra C/K 1500 in your area?

CarGurus has 3 nationwide Sierra C/K 1500 listings and the tools to find you a great deal.

ZIP:

Search GMC Sierra C/K 1500 Questions

GMC Sierra C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 140
#2 enginecreator
enginecreator
Reputation 130
#3 John Saffrahn
John Saffrahn
Reputation 120
View All

Related Models For Sale

Used GMC Sierra 1500
760 Great Deals out of 69,126 listings starting at $1,850
Used Ford F-150
2,058 Great Deals out of 207,340 listings starting at $1,499
Used GMC Sierra
31 listings
Used Chevrolet C/K 1500
861 listings starting at $3,290
Used Dodge Ram 1500
411 Great Deals out of 10,833 listings starting at $1,400
Used Toyota Tacoma
473 Great Deals out of 41,591 listings starting at $1,995
Used GMC Yukon
382 Great Deals out of 19,299 listings starting at $2,000
Used GMC Sierra 2500
151 listings starting at $4,500

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.