2007 Chevy Tahoe Stabilitrack and engine power reduced
March 26th, 2019, 11:45 AM
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2007 Chevy Tahoe Stabilitrack and engine power reduced
Hi,
We have a 2007 Chevrolet Tahoe 5.3 L with the active fuel management system. We recently were driving down the interstate going about 70 mph and the stability track light and engine light started flashing and engine power was reduced. We had a mechanic service it in the area we were at and he replaced the coil and said there ended up being no compression in cylinder four. We had had the truck towed home and brought to a local mechanic that replaced the fuel injector and did a total engine oil cleanse and he seemed to think that maybe something was stuck and needed to be ran for a couple weeks and see if it would free up. He said the oil was very dirty and flowed like water. After he did the fuel injector replacement he said compression was showing 95 but it was going back-and-forth from 95 to 5 nothing was consistent. We’ve been driving the truck for a couple weeks and it drives fine at full speed but idles rough and it recently started cutting off a couple times. We don’t know what to do at this point and would like advice or any information if anyone else has had this issue it may be related to the active fuel management system issues that many have had with these vehicles. We’re hoping it’s not a serious engine problem. Any recommendations on what we can do next? Diagnostics was showing misfire in cylinder four and several different codes for window seat heater etc. We want to figure this out but not spend a lot more money in eliminating possibilities. We have not brought it to the local dealer yet. We’ve been trying to avoid that since they burned us badly years ago on another vehicle. The mechanic that has worked on it said to maybe do an engine induction next. Could it be a computer sensor or wiring issue?
Any help is appreciated.
We have a 2007 Chevrolet Tahoe 5.3 L with the active fuel management system. We recently were driving down the interstate going about 70 mph and the stability track light and engine light started flashing and engine power was reduced. We had a mechanic service it in the area we were at and he replaced the coil and said there ended up being no compression in cylinder four. We had had the truck towed home and brought to a local mechanic that replaced the fuel injector and did a total engine oil cleanse and he seemed to think that maybe something was stuck and needed to be ran for a couple weeks and see if it would free up. He said the oil was very dirty and flowed like water. After he did the fuel injector replacement he said compression was showing 95 but it was going back-and-forth from 95 to 5 nothing was consistent. We’ve been driving the truck for a couple weeks and it drives fine at full speed but idles rough and it recently started cutting off a couple times. We don’t know what to do at this point and would like advice or any information if anyone else has had this issue it may be related to the active fuel management system issues that many have had with these vehicles. We’re hoping it’s not a serious engine problem. Any recommendations on what we can do next? Diagnostics was showing misfire in cylinder four and several different codes for window seat heater etc. We want to figure this out but not spend a lot more money in eliminating possibilities. We have not brought it to the local dealer yet. We’ve been trying to avoid that since they burned us badly years ago on another vehicle. The mechanic that has worked on it said to maybe do an engine induction next. Could it be a computer sensor or wiring issue?
Any help is appreciated.
