ias00

i'm new to the board and hoping i can get some ideas on a few problems. 2001 burb 2500 4x4 bought new and service by the book,160,000 trouble free miles to this point. the big problem is recently the engine has developed a hesitation and/or miss at cruise speed. when this first happened i thought it was the convertor locking and unlocking. when this happens its at cruise speeds of 45+ when the trans has dropped into overdrive and throttle is 1/4 or so. when this starts it feels like the engine spits and sputters or for a lack of better words "fish bites" it never really develops a pronounced miss but there is a loss of power and the surging of the engine. we have just finished a service before the problem started, new oil, air, fuel filters. new plugs, wires, water pump, all belts, all hoses, you get the picture it was a major service. this problem did not surface right away, but started almost a month afer service so i dont think i was anything due to that. i had an extra set of coils that i installed, did not make any difference.[] this problem is sporadic also, you may drive a week and never have a problem, then the next day it's at it again. engine has never died, always starts although it seems to be a little rough at idle on startup. i have just put injector cleaner in yesterday to see what happens. if this does'nt work i need some help i'm lost on this one.

2nd problem, the abs and emergancy brake lights come on and stay on together. again this is a sporadic problem. any ideas?

3rd problem, service ride control light flashes. i dont feel any different ride since the light is on. i have read that the air pumps on these give trouble. is this telling me that the pump is having issues or is there a service procedure for this system?

sorry for the long post, love the burb and want to put many more miles on her. just need a little help on this one. thanks guys!