- - little stumble 5.3L
(https://chevroletforum.com/forum/silverado-fullsize-pick-ups-21/little-stumble-5-3l-52596/)
Doug Roberts
August 21st, 2012 10:04 PM
little stumble 5.3L
Ok so driving along i feel a bump at random times thinking spark plug but shouldn't i get a code for misfire on obd
dirtsurferus
August 22nd, 2012 6:06 PM
do you feel the bump when you are giving it gas or just when you are letting off/coasting?
maxxman04
August 22nd, 2012 6:58 PM
Originally Posted by Doug Roberts
(Post 224630)
Ok so driving along i feel a bump at random times thinking spark plug but shouldn't i get a code for misfire on obd
not necessarily. misfire codes are tripped when computer senses that no combustion or very little combustion has occured. even plugs with 100k miles on them may not trip codes as long as sufficient combustion has occured. a stumble in motor could be caused by plugs, wires, coil, cheap gas. clogged injectors.
Doug Roberts
August 27th, 2012 6:56 PM
It was when i was steady on gas
Im thinking plugs / tuneup but who know till i dig in
