won't start cold
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New User
Joined: Oct 2006
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won't start cold
I have a 1991 4.9 six fuel injection.The truck won't start when it's cold, if i spray some starting fluid in it it starts right up.
Truck runs great when it's warm.It starts good when it's warm.
checked compression good,checked for fuel line leak did'nt see any.new plugs and wires.Any suggestions?
Truck runs great when it's warm.It starts good when it's warm.
checked compression good,checked for fuel line leak did'nt see any.new plugs and wires.Any suggestions?
Posting Guru
Joined: Oct 2006
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welcome to FTE - someone will chime in soon with an answer better than mine, but i'll give it a shot.
i assume it cranks, just won't turn over. in the cold, i think its your battery that takes the biggest hit trying to start the engine. i know in winter it's better to use a little thinner oil (maybe 5w instead of 10w) to get the oil up there sooner. not sure if it actually makes it easier to start though. how good is your battery? new, old? new, but too small?
i assume it cranks, just won't turn over. in the cold, i think its your battery that takes the biggest hit trying to start the engine. i know in winter it's better to use a little thinner oil (maybe 5w instead of 10w) to get the oil up there sooner. not sure if it actually makes it easier to start though. how good is your battery? new, old? new, but too small?
Postmaster
Joined: Mar 2002
Posts: 2,680
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From: Montreal Canada
My old Escort starts better if I prime the fuel pump a couple of times.
If you suspect a fuel problem, I'd start by making sure the fuel filter's been replaced and you have enough fuel pressure at the rail. I think it's like 55 psi you should have on those inline 6's. Also check the vacuum line on the fuel pressure regulator.
If you suspect a fuel problem, I'd start by making sure the fuel filter's been replaced and you have enough fuel pressure at the rail. I think it's like 55 psi you should have on those inline 6's. Also check the vacuum line on the fuel pressure regulator.
