An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: SERVICE ENGINE SOON LIGHT KEEEPS COMEING ON
That code is for a secondary air injection system. Its very common on those vehicles. You either have a bad A I R pump or the fuse and or relay to it is bad. Most likely the pump is bad and that pops the fuse and turns the light on. That pump is usually located in the driver side front inner fender. Some local parts stores can get them now and the prices are geting better. Good luck....
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
turn out to be a clogged heater core !! to access mixing door should be behind the glove box!! getting back to heater core i back flushed heater core using garden hose ! when you put garden hose on alternate back & forth a lot of crap came out ! works great now! if your using that gm antifreeze is the worst !!!!! flush your engine & radiator refill with regular antifreeze it also clogged my radiator too ! my i had to replace the radiator! my radiator has engine oil cooler too!! Big $$$!!!
There is to many things that can cause that issue from engine to transmission. If there is an Auto Zone around your area, have them scan your Blazer for the DTC codes.
They scan free of charge and can give you the recommendation to what issues needs to me addressed. Keep me posted with your DTC codes, be glad to help you get your Blazer running 100% again soon.
Thank you for using fixya and be safe
First check for any cracked pipes leading into the intake manifold If all OK (with no codes showing it probably is OK) try checking the fuel pressure regulator. If you smell fuel from the pressure regulator vacuum side arm (when the vacuum line has been disconnected) it needs to be replaced.
Start with the simple and replace the fuel filter, if the fuel filter has not been replaced within 15,000 miles or once a year. It could be dirty and needs to be replaced, a weak or dirty fuel filter will not throw your service engine light to come on.
Thank you for using Fixya, keep me posted. Be glad to help you get your S10 running 100% again soon.
Try this... turn ignition key to "ON" setting without starting engine.
Pump the accelerator pedal three times rapidly. The light should go off.
I have used this on my Chev and GM vehicles after doing an oil change myself and it always works.