Hard to start
Thread Starter
Heel & Toe
Joined: Dec 2012
Posts: 20
Likes: 0
Hard to start
Hello I have a 1986 z51 it's starting to have a hard starting problem in the morning,I try starting it without giving her any gas,but after it won't fire up I give it some gas and she will fire up but I can see some smoke from tail pipe for a few seconds. Not: sure how old plugs,wires and cap are? Should I do a tune up first? Any suggestions?
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Opening the throttle while cranking the engine over shuts off the fuel because the computer thinks you are trying
to clear a flooded engine
I would be checking your fuel system 1st ; old injectors leaking fuel into the engine when standing maybe?
FWIW ,
you can't give a EFI engine gas ;there is no accelerator pump like on a carb to squirt the extra fuel in.
Opening the throttle while cranking lets in extra air = leaner
Safety Car
Joined: Sep 2001
Posts: 4,157
Likes: 554
From: Glenbeulah Wi
If it starts by " giving it gas " then engine is rich , which could account for the exh smoke
Opening the throttle while cranking the engine over shuts off the fuel because the computer thinks you are trying
to clear a flooded engine
I would be checking your fuel system 1st ; old injectors leaking fuel into the engine when standing maybe?
FWIW ,
you can't give a EFI engine gas ;there is no accelerator pump like on a carb to squirt the extra fuel in.
Opening the throttle while cranking lets in extra air = leaner
Opening the throttle while cranking the engine over shuts off the fuel because the computer thinks you are trying
to clear a flooded engine
I would be checking your fuel system 1st ; old injectors leaking fuel into the engine when standing maybe?
FWIW ,
you can't give a EFI engine gas ;there is no accelerator pump like on a carb to squirt the extra fuel in.
Opening the throttle while cranking lets in extra air = leaner
