HaVE A 2004 Colorado 5 cyl 4x4 4 dr. and I have replaced spark plugs ,brakes ,rotars
,cleaned Intake ,and changed a hose that was rotted under valve cover and put new air filter
,The idle is just under 1 when sitting there idling until i drive it then start to apply brakes to
stop or slow down it stalls out on me .Any ideas ?????????? deperate to find problem so i have a
vehicle to drive
think that you may have created a leak in your zeal to make it right. At the shop where I worked used to find these leaks with a simple unlit propane torch...just wave it above the intake connecting tubes, and as soon as the speed increases, you've found you leaker!
We have Colorados as delivery vehicles at the NAPA auto parts store where I work. When they get some mileage on them, say around 120,000, they'll start to "hunt" at idle as you approach a stop. That is the idle will go up & down a few times as you approach a stop light. Sometimes they'll stall. You'll want to clean the throttle plates, inspect the IAC (idle air control) valve for dirt and deposits, then have a shop Motovac the intake system. Motovac is a service where strong cleaners are put directly into your fuel system through the service port on the fuel rail. This cleans your fuel injectors, combustion chambers, & valves. We've had this service done on 2 of our delivery Colorado's. A 2004 & a 2005. The '04 got totalled but the '05 is still running strong with 211,000 miles on it. HTH. - Jim
i have a 2008 chevi colorado in the morning start and wants to shot off by sef and come back normal again
what the hell did you say????????
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