Question about 1999 Saturn SL
I had similar results my valve cover gaskets leaked oil on the o2 sensors so I degreased everything and replaced caskets and O2 sensors
Posted on May 09, 2014
There are several things that could be wrong. The problem with an Auto Zone scanner is that it's just a code reader. You'll need to troubleshoot the engine. Start by looking for a vacuum leak. Are the fuel and air filters clean? How about plugs and wires?
Posted on May 07, 2014
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Posted on Jan 02, 2017
SOURCE: car wont start
At first, I thought 'coil pack'. But you said it tried to start. So that's out. You might check that you're getting spark just to be thorough.
Did it ever start again after the stall on the interstate?
If not, I'm leaning towards the timing chain.
What happens if your timing chain broke:
Do a compression test on all cylinders. If only one or two have compression (or one or more have zero compression), I'm tipping over towards the timing chain.
Have a compression test done.
Hope this helps
Posted on Jul 17, 2008
SOURCE: fuel system
Have a mechanic do a fuel system pressure check. You are probably having a problem with your primary and secondary fuel pumps. This should show up as a problem with a code scan, but sometimes it doesn't show at all.
Posted on Aug 19, 2008
sounds like a dirty mass air flow sensor.if you have in deed replaced it i would check the voltage going to the sensor.perhaps its a faulty connection between the power controle module and the sensor socket.if that dosent work i have a few more tricks to try get back to me and i will help further. firstname.lastname@example.org
Posted on Feb 26, 2009
Stop wasting time at auto zone and throwing parts at it. Find a good repair shop and have it properly diagnosed and repaired.
Have you ever had a spark plug fail in your lifetime?Probablely never will.
Do you know how to test a coil pack? Did you test it?
A simple check of vacuum hoses or a loose air filter cover,loose gas cap an so on ,could be your part of your problems. e.g. something simple.
I would recommend spending the big bucks and getting the shop manuals,for all your vehicles,something no one wants to do. Then study your vehicles systems and eventually ,you may be doing your own repairs.
Posted on May 25, 2010
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