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Jim
Grant has been working in the automotive industry for over twenty
years. In addition, Jim is an ASE Master Technician with advanced
L/1 certification. He works as manager and technician in his
family's automotive business in New Hampshire. He writes weekly
automotive consumer columns and is editor of an automotive newsletter
that is circulated throughout North America. |
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Jim Grant's Tech Tips
'92
Buick LeSabre, Hard starting & No Power
Q:
I
have a ‘92 Buick LeSabre Probably-one of the best cars I have owned.
It has a 3.8L engine. The problem is that it hesitates slightly going
up a hill and lately it doesn't start easy like it used to. I have had
my mechanic scan the codes twice and no faults. He didn't know how to
check the coil so I took it off and checked resistance on the primary
and got .7 ohms and checked the secondary and got between 11-12,000 ohms.
What do you think? Should I check the coil hot or cold?? Thank you for
any information you can give me....Roger R.
A:
The
resistance values you provided are right inline for a Type I ignition
coil. But your complaint isn’t inline for bad ignition coils. If
one of the three ignition coils was failing you would experience a very
pronounced engine misfire, skip or bucking. I’m more inclined to
believe that you may have a fuel related problem. My suggestion is to
start with a fuel pressure and just as importantly fuel volume test. A
loss of fuel pressure or volume will affect starting and the overall performance
of the vehicle.
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