Chevy 5.7LTR MISFIRE 1997 SUBURBON

Tiny
RASCAL6568
  • MEMBER
  • 1997 CHEVROLET SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 144,357 MILES
IAM WORKING ON A 1997 CHEVY SUBURBAN 5.7LTR AND HAVE MULTIPLE MISFIRES ON CYLENDARS 2;4;6;8 RIGHT BANK I HAVE REPLACED CAP, ROTOR, CAM SENSOR, DISTRIBUTOR, RE-TIMED TO RETARD 0 AND CHECKED COMPRESSION, WIRES, AND PLUG GAP. STILL MISFIRES UNDER LOAD AT IDLE SELDOM MISFIRED BUT AT ACCELERATION ALL RIGHT BANK CYLENDERS MISFIRE. I NEED HELP! LOOKING AT FUEL INJECTORS NEXT BUT CONFUSED ON WHY ONLY ON CYLENDERS 2, 4, 6, 8. O2 SENSORS SEEM GOOD AND ONLY CODE IS P0300.?
Friday, January 7th, 2011 AT 4:22 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the crankshaft position sensor
Was this
answer
helpful?
Yes
No
+1
Friday, January 7th, 2011 AT 7:20 AM
Tiny
RASCAL6568
  • MEMBER
  • 5 POSTS
I HAVE REPLACED THE FUEL INJECTORS AND CRANKSHAFT POSITION SENSOR AND STILL HAVE SAME CODES. MISFIRE ON CYLENDERS 2, 4, 6, 8. COMPUTER REPLACEMENT IS NEXT? ANY HELP WOULD BE APPRECIATED.
Was this
answer
helpful?
Yes
No
Saturday, January 15th, 2011 AT 4:32 PM
Tiny
RASCAL6568
  • MEMBER
  • 5 POSTS
ALSO DID COMPRESSION TEST ALL WERE 165-170 COMPRESSION WITH CYLENDER 8 THE LOWEST @ 165.
Was this
answer
helpful?
Yes
No
Tuesday, January 18th, 2011 AT 3:21 AM

Please login or register to post a reply.

Related Misfire Idle Content

VIEW MORE