service engine soon light blinking constantly - Blazer Forum - Chevy Blazer Forums

Go Back  Blazer Forum - Chevy Blazer Forums > Mechanical & Maintenance > Engine & Transmission
Reload this Page >

service engine soon light blinking constantly

Engine & Transmission Post your Engine and Transmission related problems here.
Sponsored by:
Sponsored by:

service engine soon light blinking constantly

  #1  
Old 01-13-2019, 09:00 PM
Beginning Member
Thread Starter
Join Date: Jun 2013
Posts: 10
backanforth10to2 is on a distinguished road
Default service engine soon light blinking constantly

97 blazer 4dr 4wd automatic: replaced cap, rotor and plug wires due to random miss fire code setting. a couple weeks later develops this new problem. idleing rough running rough fuel gauge needle bouncing up and down which seems to correspond to the roughness of the rough idle. needle holds steady under acceleration also needle spikes if i shift back an forth between drive and reverse, drive spikes, reverse spikes, drive spikes and so forth. also the service engine soon blinks continuously steady.
 
  #2  
Old 01-13-2019, 09:19 PM
cleburne red's Avatar
Super Member
Join Date: Sep 2011
Location: Texas
Posts: 1,585
cleburne red will become famous soon enough
Default

The blinking check engine means a severe misfire. Not sure about your other symptoms
 
  #3  
Old 01-14-2019, 07:36 PM
Junior Member
Join Date: Nov 2018
Location: Grayson KY
Posts: 332
go chevy is on a distinguished road
Default

Originally Posted by backanforth10to2 View Post
97 blazer 4dr 4wd automatic: replaced cap, rotor and plug wires due to random miss fire code setting. a couple weeks later develops this new problem. idleing rough running rough fuel gauge needle bouncing up and down which seems to correspond to the roughness of the rough idle. needle holds steady under acceleration also needle spikes if i shift back an forth between drive and reverse, drive spikes, reverse spikes, drive spikes and so forth. also the service engine soon blinks continuously steady.
Maybe your fuel injectors need a good cleaning??? Just a thought but try pouring a bottle or 2 of SeaFoam gas treatment in your gas tank next fill up at the pump... I swear by the stuff, it really smoothed out my ride.
 
  #4  
Old 01-15-2019, 05:04 PM
Beginning Member
Thread Starter
Join Date: Jun 2013
Posts: 10
backanforth10to2 is on a distinguished road
Default

go chevy: although i recently replaced the spider and poppets (fuel injectors), i will try the sea foam cleaning since it can't hurt.

cleburne red: im aware blinking service engine soon light might indicate severe misfire (it does indicate other problems) i am interested in answers for my other symptoms.

thank you both for your replies
 
  #5  
Old 01-24-2019, 08:54 PM
Beginning Member
Join Date: Jan 2019
Posts: 21
Matthewrcarrier is on a distinguished road
Default

I had an issue similar to this changed everything plugs, cap and rotor, wires, new cat, fuel pump the whole nine yards it ended up being a worn distributor gear! Take your distributor out see if the gear is worn replace it if so or get new distributor.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bolbol
Steering, Suspension & Drivetrain
13
08-12-2015 01:47 AM
aconnerb
2nd Gen S-series (1995-2005) Tech
4
06-17-2015 03:02 PM
Mike_Williams7
Steering, Suspension & Drivetrain
0
02-10-2015 07:29 AM
Mike2Cubed
2nd Gen S-series (1995-2005) Tech
3
03-08-2008 08:27 PM
gmyoyo
Engine & Internal
2
03-29-2005 12:17 PM


Thread Tools
Search this Thread
Quick Reply: service engine soon light blinking constantly


Advertising
Featured Sponsors
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.