2001 Chevy Express oil in water

2001 CHEVROLET EXPRESS
85,261 MILES • V8 • 2WD • AUTOMATIC
Avatar
SINMAN2112
  • MEMBER
  • 1 POST
i found what looks like oil in my water. I found it when I went to top off the water after seeing the temp guage getting hot.
When I put the water in the res., it had little black dots surrounded by what looked like oxidation, but it was kind of grey not milky.
My check engine light has been coming on and off for a few weeks now and when it does, my little code reader implies multiple misfires.

My thoughts are that it could be a blown head gasket - no water in oil...yet -
Thermostat - not opening enough and the water is just dirty...
blow-by in the cylinders

But I am no mechanic so that is why I came here...

Can you help a poor man out?

Thanks and God Bless,
Steve
Jun 16, 2010 at 6:01 PM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Try flushing the cooling system and for the misfires could be one of the following

1.Defective spark plug
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Idle air control valve.
Jun 16, 2010 at 9:09 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.