I posted before but decided it time for an update in a new tread. My wife
has a 93 Buick LaSabre with 188,000 miles. It has a 3800. I can not afford
to buy another car with being on disability. The car wont run on the road to
get it to a shop for a scan. I have checked for codes and have none, and the
service engine light has not come on. It will idle forever, but when it is
driven and the gas it applied it stalls out and we have a strong smell of
So far I have changed the spark plugs and drove it same thing stalls out and
the plugs were blacked.
I check the coil packs with a ohm meter and found one was weaker then the
others. I replaced it still same problem.
I changed the fuel filter which was long overdue. And I removed the
catalytic converter still same problem.
I took the vacuum line off the fuel regulator and it did a little better
driving with the line removed but it stalled again but did get up to 45 mph.
I took the fuel regulator into a shop to see if they could test it and the
guy sucked on the port of the vacuum line and said it is fine.
I check the fuel pressure and found it to be 35 pound and when I rev the
motor it went up to 45 pounds.
I am still leaning toward the fuel regulator but at $100 I need to be sure
before I start putting parts in that are not needed.
Or could it be the computer. And why no service light.
I have always found help from this group.
Thanks in advance.