97 tahoe

[mossyoakman827]

thats kinda the way i was leaned just wanted to see what other people thought thanks im getting a full exaust ill let yall know again thanks

 

[branndon_b]

stupid question, does the service engine light go away if the conditions clear? or the code, does the code clear on its own? i know some cars you have to clear out the old codes, they may not go away on their own. you may be doing that already, was just asking a possibly stupid question. branndon.

 

[destroyer1362]

stupid question, does the service engine light go away if the conditions clear? or the code, does the code clear on its own? i know some cars you have to clear out the old codes, they may not go away on their own. you may be doing that already, was just asking a possibly stupid question. branndon.

on mine the light comes and goes but I'm 99% sure the code stays until you clear it

 

[mossyoakman827]

on mine the light comes on and blinks when the truck has a misfire i know the code canbe cleared and if not fixed will come back on but i think the other is based on drive cycles after the computer finds nothing wrong after so many cycles it will clear sometimes store in the computers memory even when fixed and cleared

 

[destroyer1362]

Someone correct me if I'm wrong but doesn't the blinking light mean something more urgent than a misfire, like running lean or something?

 

[kjlegend]

Yes, If your light is BLINKING vs SOLID ON then you have a major malfunction. As my mechanic says "A catastrophic malfunction and stop the mother fu$%in car now"

 

[stykthyn]

Yes, If your light is BLINKING vs SOLID ON then you have a major malfunction. As my mechanic says "A catastrophic malfunction and stop the mother fu$%in car now"

+1 blinking light means bent pushrods, stuck lifters, possible PTV clearance. It's ugly.

 

[gd2227]

a slight misfire and a blinking check engine light on mine = 1 bent push rod in the shape of a Z, 1 pushrod sent through the top of the rocker, 5 roller lifters with blown out retaining rings (with a bunch of small metal fragments send all over the cam galley and down into the pan). I believe the #4 piston is dead as well.
SO, +2 for the blinking check engine light = bad

 

[mossyoakman827]

didnt know that ill call the dealer monday and find out ill be sure and let youkno thanks

 

[mossyoakman827]

dealer says a blinking check engine light means that is when the engine is misfireing, yes a bent push rod can cause this I agree but wouldnt i hear it knocking?