2006 Trailblazer 6 cyl.
Codes = P0135 also check fuel pressure - OK.
Question = engine starts then stops after 2 seconds; turned off, try again
and same result - many times; waited one day and same thing
security system works; don't have Passkey feature.
Thank you for donating!
The code you have for your Trailblazer is the for the Heated Oxygen Sensor
#1, and heater performance. That really shouldn't directly cause the engine
to die out, so you may have two different problems. You mention that your
vehicle does not have the Passkey feature, but it does have a factory theft
deterrent system. It does not utilize a chip key, but rather a Passlock sensor
as part of the ignition cylinder housing. You could possibly have a problem
with that. Can you keep the vehicle running if you put your foot on the gas,
or will it die out no matter what? Are there any other lights showing on the
dash, like a security light, theft light, or picture of a little lock symbol? Turn
the key on and shut the door and any security light should go out if there not
a problem with the system. If it stays on with all doors closed and the key in
the on position, you definitely have a security problem. You can reply back
with more information and I'll continue to help you out the best I can.
Codes = P0135 also check fuel pressure - OK.
Question = engine starts then stops after 2 seconds; turned off, try again
and same result - many times; waited one day and same thing
security system works; don't have Passkey feature.
Thank you for donating!
The code you have for your Trailblazer is the for the Heated Oxygen Sensor
#1, and heater performance. That really shouldn't directly cause the engine
to die out, so you may have two different problems. You mention that your
vehicle does not have the Passkey feature, but it does have a factory theft
deterrent system. It does not utilize a chip key, but rather a Passlock sensor
as part of the ignition cylinder housing. You could possibly have a problem
with that. Can you keep the vehicle running if you put your foot on the gas,
or will it die out no matter what? Are there any other lights showing on the
dash, like a security light, theft light, or picture of a little lock symbol? Turn
the key on and shut the door and any security light should go out if there not
a problem with the system. If it stays on with all doors closed and the key in
the on position, you definitely have a security problem. You can reply back
with more information and I'll continue to help you out the best I can.
VISITOR:
THE PROBLEM I AM ASKING ABOUT IS IT STARTS, THEN STOPS AFTER 2
SEC; ACTS LIKE IT’S OUT OF FUEL (BUT IT IS NOT); I HAVE PUMPED THE
ACCELERATOR PEDAL; THIS INFORMATION WAS PROVIDED ONLY
BECAUSE THE FORM REQUESTED A LIST OF “CODES”. DIES NO
MATTER WHAT I DO. THERE ARE NO LIGHTS ON THE DASH, WITH OR
WITHOUT THE DOOR OPEN AND WITH AND WITHOUT THE KEY ON. WHEN
THE ENGINE STOPS, MANY LIGHTS FLASH ON THE INST PANEL BUT
IMMEDIATELY GO OUT.
Ok then, we're going to have to start with the basics. You say that you have
fuel, but did you actually check the fuel pressure? If it is low, or restricted it
can cause the vehicle to stall. With a fuel pressure gauge, and the key on,
you should have at least 50-57psi. It will drop a bit when the engine is
running, but you want to have at least 50psi with just the key on, and that
reading should not fall off much after sitting. Also, check basic things like the
air filter and intake tubing to make sure there is no restriction. If you can
remove the plastic ducting and airbox on top of the valve cover, check to
make sure you can move the throttle blade by hand. In some instances, the
throttle bodies on Trailblazers become so carboned up that they stick closed
and that wouldn't allow your vehicle to start. Give those things a check and
get back to me.
THE PROBLEM I AM ASKING ABOUT IS IT STARTS, THEN STOPS AFTER 2
SEC; ACTS LIKE IT’S OUT OF FUEL (BUT IT IS NOT); I HAVE PUMPED THE
ACCELERATOR PEDAL; THIS INFORMATION WAS PROVIDED ONLY
BECAUSE THE FORM REQUESTED A LIST OF “CODES”. DIES NO
MATTER WHAT I DO. THERE ARE NO LIGHTS ON THE DASH, WITH OR
WITHOUT THE DOOR OPEN AND WITH AND WITHOUT THE KEY ON. WHEN
THE ENGINE STOPS, MANY LIGHTS FLASH ON THE INST PANEL BUT
IMMEDIATELY GO OUT.
Ok then, we're going to have to start with the basics. You say that you have
fuel, but did you actually check the fuel pressure? If it is low, or restricted it
can cause the vehicle to stall. With a fuel pressure gauge, and the key on,
you should have at least 50-57psi. It will drop a bit when the engine is
running, but you want to have at least 50psi with just the key on, and that
reading should not fall off much after sitting. Also, check basic things like the
air filter and intake tubing to make sure there is no restriction. If you can
remove the plastic ducting and airbox on top of the valve cover, check to
make sure you can move the throttle blade by hand. In some instances, the
throttle bodies on Trailblazers become so carboned up that they stick closed
and that wouldn't allow your vehicle to start. Give those things a check and
get back to me.
VISITOR:
Thanks!
I checked the throttle body and found a little gumminess; but, the vane moved freely with finger pressure; it
appears that there is a servo of some sort, so that adds a little drag; when I tried to start the car with the vane
visible, it did not move very much if at all (had an observer); tried to start while holding the vane open but it would
not start; I will try that again tomorrow morning. I borrowed the fuel pressure gage; I’ll borrow it again and get an
exact reading, but, for what it is worth, I remember the needle was at the 1 o’clock position. I borrowed the OBD II
scanner from O’Reilly auto parts; can’t say whether it is comprehensive. I’ll check the fuses in the morning. Thanks
for your promptness.
Thank you for getting back, and like I mentioned earlier I assume you most likely have ok fuel pressure and am
leaning toward a theft issue, or some other electrical issue. I researched the scanner you used and it does NOT
support anything other than engine and ABS codes. You won't be able to see any other systems with that scanner.
If you can find one that does body control, you can watch the live data stream to see if your getting ignition and
theft signals, or if there are any trouble codes for those systems. It sounds like your throttle body is probably ok,
but could use a cleaning to get rid of the greasy carbon build up. I'll be able to reply more tomorrow after you get
any further information.
Thanks!
I checked the throttle body and found a little gumminess; but, the vane moved freely with finger pressure; it
appears that there is a servo of some sort, so that adds a little drag; when I tried to start the car with the vane
visible, it did not move very much if at all (had an observer); tried to start while holding the vane open but it would
not start; I will try that again tomorrow morning. I borrowed the fuel pressure gage; I’ll borrow it again and get an
exact reading, but, for what it is worth, I remember the needle was at the 1 o’clock position. I borrowed the OBD II
scanner from O’Reilly auto parts; can’t say whether it is comprehensive. I’ll check the fuses in the morning. Thanks
for your promptness.
Thank you for getting back, and like I mentioned earlier I assume you most likely have ok fuel pressure and am
leaning toward a theft issue, or some other electrical issue. I researched the scanner you used and it does NOT
support anything other than engine and ABS codes. You won't be able to see any other systems with that scanner.
If you can find one that does body control, you can watch the live data stream to see if your getting ignition and
theft signals, or if there are any trouble codes for those systems. It sounds like your throttle body is probably ok,
but could use a cleaning to get rid of the greasy carbon build up. I'll be able to reply more tomorrow after you get
any further information.
