My old Chevy Lumina usually starts fine, but lately about 1 in 10
times it won't start unless I press gas pedal all the way to the
floor. Ordinarily, of course, i don't press gas pedal at all when
starting. It always turns over fine, just sometimes won't do any more
than that unless I do the gas pedal trick, and then I'm good to go.
My question is am I doing long term damage to the engine by blissfully
ignoring this, since I know the "trick" to get it started when
It always behaves perfectly once it's running -- starting is the only
On 3 Feb 2007 09:03:14 -0800, firstname.lastname@example.org wrote:
Not if you release the pedal in time to prevent high revs with the
FWIW its likely you have a problem with flooding -- possibly caused by
an injector leaking down.
If a vehicle has a carburetor with an automatic choke, one must move the
throttle to allow it to reset, or floor it to force it open. If one needs
to force the choke open, too much fuel entering the carburetor. Moving the
throttle on a modern EFI equipped vehicle is not necessary, or advisable,
since the microprocessor sets the fuel/air ratio as needed.
How old is this Lumina and does it have fuel injection or a carb (some
very early ones did actually use a Rochester E2SE 2-barrel carb with
electronic mixture control)?
To amplify what Mike said, if it is injected, if you push and hold the
throttle past the 90% point during cranking the ECM will not pulse the
fuel injectors. The fact that the car starts under those conditions
tells me you have an injector that is leaky, and the engine needs the
extra airflow to have a fireable mixture. As long as you let up on the
throttle as soon as the engine starts, starting the car this way
should not harm it, but you would be better off having it looked at
and having the underlying problem resolved.
My little sister's (in her late 20's) car blew up about 5 years ago. So I
loaned her my beloved '72 Plymouth Valiant 4 door (225 slant 6, 904
TorqueFlite tranny, it used to be a municipal car -- simple, white, had
radio delete, plastic floormats/no carpet, only had like 70K miles, etc.).
It DID run great. When I was at her house one day, she left to go to the
store in my Valiant. She started it by flooring it all the way to the
ground and then turning the ingition. So it was screaming! Here, it was
cold and not properly lubed internally, and she starts it up at full
throttle! I ran out and asked her not to do that. Long story, short. The
Valiant blew up under her 'care'. :-( Lesson learned/moral of the
story: when loaning out your car to someone, go over starting procedures.
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