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How to run engine light blink codes on a 2005 Trailblazer

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  • Cars & Trucks Master
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Is the engine light blinking while running? If so, the engine is misfiring.

Posted on Mar 24, 2014

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: engine code p0410

If the air pump is working then it's going to be the one way check valve at the manifold. It's common for the check valves to go bad before the air pump, check the pipe from the pipe to the manifold too.
Before you get that far i believe there was a TSB and the warranty is 5 years to the emission system on vehicles. Looks like your close to the end of your 5 year so step on it to the dealer while you can still get a deal on this repair.
Good luck and hope this helps.

Posted on May 27, 2009

  • 3 Answers

SOURCE: 2005 trailblazer check engine light on

Verify any "check engine" by first resetting the computer then waiting to see if it returns. To reset the computer, disconnect the battery cable (some say either cable, I say positive{red} cable). Leave the cable disconnected for about 30 minutes then reconnect it and start the engine. Because the cable was disconnected from power for a while, the computer will have to reboot upon startup. Just like any computer, sometimes a reboot will solve the hangup. If the error returns, it is likely a sensor is bad or the sensor is indicating a true problem.

Posted on Jul 22, 2009

  • 617 Answers

SOURCE: 2005 Chev Trailblazer. Stabilitrac, check engine

need to get codes to repair, have seen alot of these vehicles go thru the throttle position sensor which is the complete throttle pedal assembly

Posted on Feb 07, 2010

  • 478 Answers

SOURCE: have 2005 trailblazer check engine light on and

If you have a "Air pump installed on your TB then you need to replace pump and or check to make sure that the hose's are all connect to it prior to replacing the pump which is dependisng on which engine you have on the lower left side (passenger)
Models Affected
1999-2003 Chevrolet Blazer, S10
1999-2001 GMC Jimmy
1999-2003 GMC Sonoma
1999-2001 Oldsmobile Bravada
All with 2.2L or 4.3L Engine (VINs 4, H, 5, W -- RPOs LN2, L43, L35)
Some owners may comment on the check engine light being illuminated. Upon
investigation, the technician may find a DTC P0410 indicating there is a concern in the
secondary air injection system.
This concern may be attributed to water that may have collected in the AIR pump or the
vent solenoid and frozen or corroded the pump.
Replace the AIR pump and install a new inlet hose and solenoid tube assembly using
the following procedure:
1. Prep vehicle.
2. Raise vehicle on hoist.
3. Remove shield covering AIR pump.
4. Remove hose and vacuum lines from pump and solenoid.
5. Remove AIR pump inlet hose. Do not re-use.
6. Disconnect electrical connectors from pump and solenoid.
7. Remove pump mounting bolts and pump.
8. Transfer isolators from the old pump to the new pump.
9. Install new AIR pump and bolts to vehicle. Tighten the bolts to 17N·m (12.5 lb ft).
10. Route new hose assembly up between engine and fender. It should come up near
the area between the battery and the coolant bottle.
11. Connect new inlet hose to pump inlet.
12. Connect old outlet hose to pump outlet.
13. Connect electrical connector to pump.
14. Connect electrical connector for solenoid to connector on the new hose assembly.
15. Connect the hose with the white nipple to the vacuum source hose.
16. Connect the remaining hose to the shut off valve.
17. Install shield covering AIR pump.
18. Lower vehicle.
19. Remove coolant reservoir nut nearest the battery.
20. Route new hose assembly between the battery and the coolant reservoir with the solenoid on top.
21. Install the solenoid bracket onto the coolant reservoir stud and reinstall the nut
back into the vehicle.
22. Use a wire tie to keep the new hose assembly away from the engine. On four
cylinder engines, tie to the AIR outlet hose. On six cylinder engines, tie to an
available hole in the radiator fan shroud.
Part Information
Part Number Description Quantity

Posted on Apr 13, 2010

  • 1150 Answers

SOURCE: was cleaning throttle body on

try disconnecting the negative wire on the battery for about 10 min

Posted on Sep 16, 2011

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2 Answers

Engine light flashing running rough

Read the fault codes and replace faulty units.

Apr 04, 2013 | 2004 Chevrolet TrailBlazer

1 Answer

2005 Chevy Trailbrazer. Check engine light and check gauge lights have come on. Now there is a ticking noise coming from under the at idle and while driving!

take to a parts store, advance auto, etc., have them pull up trouble shooting codes from ECM, these codes , could be more than one, will pin point your problems. when engine light stays on , its storing codes, and these need addressed asap. as far as that ticking noise, get out might be a bomb, just kidding

Jan 31, 2013 | 2003 Chevrolet TrailBlazer

1 Answer

Engine light blinking and it runs rough and sound like a lawn mower and back fires in front of car

Don't drive it when the light blinks, could cause damage. You may have a bad coil, we have 6 of them. Have someone check the code that the light is pulling. Need an OBD II code checker.

May 22, 2011 | 2006 Chevrolet Trailblazer

1 Answer

I have a 2006 trailblazer engine light on when started runs for about 3 sec. then cuts off.

First of all, what cuts out, the "check engine" light, or the engine itself? If its the ck eng light it sounds like an intermittin problem that in most cases cannot be resolved with a code scanner. Have you disconnected the battery to reset that light? If not, then do so (usually the ground cable) for about 10 min., then re-connect the cable and your ck eng. light will be off. ck eng. lights generally have to be constantly on in order to pull codes from the PCM. If there is a problem then the light will come back on.

Mar 31, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

2005 Chev Trailblazer. Stabilitrac, check engine

need to get codes to repair, have seen alot of these vehicles go thru the throttle position sensor which is the complete throttle pedal assembly

Feb 07, 2010 | 2005 Chevrolet Trailblazer Ext

1 Answer

Can't get the check engine light to go out on our 2005 Trailblazer. Recently replaced the spark plugs, air filter and previous to this a recent oil change as well.

There could be a hundred causes for a check engine light. First step is to hook up a computer scan tool and see what codes the computer has. The next step depends on the codes.

Dec 31, 2009 | 2005 Chevrolet Trailblazer Ext

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