2002 Chevrolet Astro Q&A

2002 Chevrolet Astro Question: Check engine light

This van is not getting enough air in the fuel mix. When the check engine light comes on the fuel efficiency goes in half and it uses a lot of oil. I replaced the air flow device and some cables.. It did n't help. The light comes on after the engine is warm and after I fill up with gas. When the light is on the van will occasionally run rough -
Answer 1
What OBD codes are you getting? It's possible you have an internal fuel leak. -
Related Items:
...whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regu...
Illumination of the Check Engine Light may be the result of a loose or worn gas cap.
The EGR valve may stick open causing a rough idle and the Check Engine Light light to illuminate. Our technicians tell us that a piece of carbon may become stuck in the...