I am really confused, I have a 2005 trailblazer that sputters and stalls and there are about 5 threads stating different options on how to fix it. So here are the exact details and maybe someone can narrow down what I need to do.
My trailblazer starts fine and drives fine for the first 5 minutes. Then I lose power and the truck sputters and almost stalls. If I come to a stop it actually does stall. When I step on the gas it continues to sputter and I can't get it over 15 mph. The more I step on the gas the higher the RPM's go but no power and the sputtering is still there even at 3-4K rpm. This will occur for the next 10 minutes or so until it gets hot. Then the truck will run fine. I can park the truck for a 1-3 hours and all will be alright but if it sits longer (especially overnight) then the same condition returns. I read that it is the throttle body so I took it out and cleaned it. The Throttle body was blackened with tar like substance but I got it clean as a whistle after using an entire can of cleaner. I disconnected the battery cable overnight and then reconnected it. I turned the key and let it sit (not started) for 5 minutes just like a member here posted and then started the truck and let it idle for 5+ minutes. All seemed OK for about 2 days and then it started again. Still have the same problems. Also tried fuel injector cleaner and premium gas. Also used dry gas in case of water in the tank. Nothing has worked.
The following remedies have been posted on this site but not sure which one to start with next:
Upstream O2 sensor
Downstream O2 sensor
Plugged CAT
Bad Spark Plug
Bad Coil
Anyone know what I should do next?? or what other info you need to help me solve this.
Thanks
My trailblazer starts fine and drives fine for the first 5 minutes. Then I lose power and the truck sputters and almost stalls. If I come to a stop it actually does stall. When I step on the gas it continues to sputter and I can't get it over 15 mph. The more I step on the gas the higher the RPM's go but no power and the sputtering is still there even at 3-4K rpm. This will occur for the next 10 minutes or so until it gets hot. Then the truck will run fine. I can park the truck for a 1-3 hours and all will be alright but if it sits longer (especially overnight) then the same condition returns. I read that it is the throttle body so I took it out and cleaned it. The Throttle body was blackened with tar like substance but I got it clean as a whistle after using an entire can of cleaner. I disconnected the battery cable overnight and then reconnected it. I turned the key and let it sit (not started) for 5 minutes just like a member here posted and then started the truck and let it idle for 5+ minutes. All seemed OK for about 2 days and then it started again. Still have the same problems. Also tried fuel injector cleaner and premium gas. Also used dry gas in case of water in the tank. Nothing has worked.
The following remedies have been posted on this site but not sure which one to start with next:
Upstream O2 sensor
Downstream O2 sensor
Plugged CAT
Bad Spark Plug
Bad Coil
Anyone know what I should do next?? or what other info you need to help me solve this.
Thanks