Question about 2004 Chevrolet TrailBlazer

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Service engine light blinking

Service Engine light blinks while in drive

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As we all have done since 1981 --some 32 years now

CHECK FOR CODES--first & every time you get a check light

Blinking verse steady is not always good

Got with the solution fast

Posted on Dec 01, 2012

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6ya6ya
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Posted on Jan 02, 2017

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csmock132
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SOURCE: 97 chevy tahoe service engine light blinks and

The light is flashing because the engine is miss firing. The first thing I would try is replacing the distributor cap and rotor.

Posted on Apr 25, 2009

  • 150 Answers

SOURCE: service engine light blinks,code read out of po300

Code p0300 is the code for "random missfire detected". The "check engine" light is flashing to warn you that severe damage is being done to the catalytic converter.(very expensive)..

Posted on Apr 28, 2009

  • 1986 Answers

SOURCE: service engine light always on or blinking. car

If the light was flashing, then it means your engine is misfiring.

A solid light can mean anything from a loose/faulty gas cap to a transmission issue.

This light comes on when the computer detects a fault of some sort in its diagnostic tests. If it keeps detecting this issue, the light will remain on. If the light turns off, then it has detected that the issue may no longer be present.

In order to find out what the exact reason was for your light, You need to have your car computer scanned to retrieve the code that the computer would have stored when the light triggered. Most garages will do this free of charge. The code will tell you what may have caused the light to initially turn on.

Posted on Oct 19, 2009

SOURCE: service engine soon light blinking /car backfiring and missing

If your check engine light is blinking, you can take your car to Autozone, Advanced Auto or other parts house and ask them to get the engine codes. This ios a FREE service. It sounds like your camshaft positioning sensor, Cam Positioning sensor is bad. This is how comuterized systems tell where the cam and crackshaft are to set the timing. It sounds like you have timing issues.

Posted on Mar 22, 2010

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My wife was driving my 02 chevy blazer and she said it started shaking real bad and the service engine light was blinking and she said it smelt like fireworks dose anyone have any idea why that might


A blinking check engine light is a sign of misfire condition that serious enough to damage the expensive catalytic converter. Stop driving it and have it towed to a shop to find out what's going on.
Flashing check engine light is serious Ricks Free Auto Repair Advice

Aug 26, 2017 | Cars & Trucks

1 Answer

What does the service engine light mean on a 2015 Ford Edge


Service Engine Soon

If the Service Engine Soon indicator light stays lit after you've started the engine, the On Board Diagnostics system (OBD) has detected a malfunction of the vehicle emissions control system. Contact your authorized dealer as soon as possible.
If indicator light is blinking, an engine misfire may be occurring, which could damage your catalytic converter. Drive in a moderate fashion (avoid heavy acceleration and deceleration), and have your vehicle serviced immediately.*
The Service Engine Soon indicator light illuminates when the ignition is first turned on (prior to engine start) in order to test the bulb, as well as indicate whether the vehicle is ready for Inspection/Maintenance (I/M) testing.
Normally, the Service Engine Soon light will stay on until the engine is cranked, then turn itself off if no malfunctions are present. However, if after 15 seconds this light blinks eight times, it means that the vehicle is not ready for I/M testing.Check this link out Gary.
https://owner.ford.com/how-tos/vehicle-features/dashboard-instrument-cluster/warning-lamps-and-indicators.html

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1 Answer

1998 HONDA CIVIC PROBLEM WITH ACCELERATION WHILE DRIVING, WHY IS THIS HAPPENING CHECK ENGINE LIGHT IS BLINKING THEN STAYS ON ALSO


Hi Candice:
If the check engine light is blinking, there is a problem that could cause serious engine damage.
You should take it to a qualified service mechanic.

Apr 12, 2016 | 1998 Honda Civic

1 Answer

What does it mean when the service engine light is blinking in a 2005 Pontiac g6?


most of the time when your check engine light blinks it means your having a converter melt down. you need to find out the cause of it. most of the time its something to do with your emission system. a simple computer diag from a local parts store might tell you what sensor is not working right. or you can go to your mech and it will only take a min to check out the codes.

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1 Answer

Brainbox light comes up on the dashboard after driving few kilometres. I change it with another one but still the same problem. Toyota camry 1994 model.


Well, that's the check engine light I think. It is saying something is not normal. You can read out a trouble code to give you an idea of why it is on. Turn the ignition on, but engine stopped, and with a piece of wire bridge terminals TE1 and E1 in the service terminal box, at one rear corner of the engine compartment.

The check engine light will then blink. A steady blink 4 times per sec is "all normal".

Trouble codes are 2 digits, and these will be blinked - first digit - pause - second digit - repreat.

So the oxygen sensor fail code (a common one) is 21, and will show 2 blinks - pause - 1 blink - repeat.

There are 22 of these codes

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1 Answer

Service Engine Soon light is on and exterior and interior light blink while driving


have code pulled for check engine light the blinking light issue sounds to be the battery the alternator or the volt regulator in the alternator auto parts store will test all theses for free for you with them on vehicle good luck hope this helps

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I have a Mazda 2001 MPV, just had service for o2 sensor and now the check engine light is blinking .


blinking light means engine is misfiring. continuing to drive will severely damage the engine. The O2 should not be related to your engine misfiring

Nov 13, 2009 | 2001 Mazda MPV

2 Answers

2004 Nissan Quest began shaking while driving then


SOUND LIKE FUEL PUMP.SCAN IT TO MAKE SURE.IT ALSO COULD BE FUEL PUMP RELAY OR FUSE.

Aug 10, 2009 | 2004 Nissan Quest

1 Answer

Over drive light on shifter blinks and check engine light is lit.


You need to have it scanned for codes. The flashing overdrive light means it has trouble codes that pertain to the transmission.

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