Questions & Answers for: change spark plugs 2003 trailblazer

...spark plugs in 2003 chevy trailblazer CHANGING SPARK PLUGS IN TRAIL BLAZER. YOU NEED TO REMOVE AIR INTAKE RESONATOR AND IGNITION COILS.YOU NEED LONG 3/8 EXTENSION - SPARK PLUG SOCKET - 3/8 RATCHET ...

...spark plugs and reset code. Check Engine Light re-appeared and now goes on and off. Still seems to stumble and act like it wants to stall when stopped. What next? 2003 Trailblazer LT--4.2L straight 6 ...

...do i find procedures to change spark plug on a 2003 trailblazer 4200 engine Go to WWW.trailvoy.com and do a search for spark plug replace, there should be several threads that describe the

change spark plugs 2003 an recomend type plug Don't use anything but AC Delco 41-103's TB's love these. You can get them at the dealer, but can get them cheaper from someone like Autozone. Our TB's ...

...spark plugs @ .040 and checked all of the connections. Now my engine skips. It gave a 0300 code ( multiple cylinder misfire). Any suggestion where to start. How can I tell which cylinder is misfiring ...

...I changed the spark plugs but still the same. 1st things first, clean your throttle body.  Also, that smell is concerning, have a muffler shop do a back pressure test on the Catalytic

spark plugs in my 2003 chevrolet trailblazer and its still saying mulitiple misfire computer said misfire on #3 i changed spark plugs now it says misfire on multiple Hi Julie, i believe the problem on

...spark plugs and used Fuel Injector Cleaner in Fuel Tank but no positive results. Can someone help what to do. The first thing I would do is clean the throttle body. Don't use carburetor cleaner, use ...

03 trailblazer won't start changed feul pump and filter still won't start. Have you used a fuel pressure gauge to test the system? Have you checked for spark at the plugs?

SPARK PLUGS, IOL CHANGE. IDK ?ELSE P0700: Transmission Control System Malfunction http://www.autocodes.com/p0700.html U1041: Electronic Brake Control Module Missing Data http://www.autocodes.com/u1041