Three months it's been in the shop. Fuel inj. 4 cyl - runs great otherwise. problem only in the morning. Fires on all plugs and fuel is spraying from the injector. It just cranks but never catches. When it finally does start up it acts as though (and smells like) it's flooded. So far have replaced: Oxygen. sensor, Temp sensor, Fuel pressure Regulator, and Mat sensor. Also tried new computer - so far no fix. Happen 3 - 4 mornings a week. Need help please.
I've got a 1988 Pontiac 6000 (same car) with the same engine. Mine doesn't start in sub-zero temperatures no matter if I have a fully charged battery. Mine has gone through two oxygen sensors. Mine needs a fuel pressure regulator also. My 6000 did something similar to this when my brother had it - it required three things to fix it. I unfortunately don't remember what they were, but I know one of them was the fuel pump. (which by the way you're explaining, maybe it doesn't need that) I've had loads of starting problems with mine. You should feel lucky your car doesn't have as many problems as mine.
With 124,350 miles: Needs tires Needs struts A/C doesn't work Cruise no longer works Speaker cuts in/out Oil leak Antifreeze leak (twice) Transmission leak Power Steering Fluid leak Needs an oxygen sensor again (replaced only five months ago) Won't start easily when gas tank is below 3/4 of a tank Won't start in sub-zero temperatures Seatbelts wore out Water leaks when it rains Fuel pressure regulator (causes stalling) Idles bad, especially when cold but will do it when warmed up sometimes also Catalytic converter Muffler rattles
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