Bronco II no Start when cold
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Cross-Country
Joined: Mar 2006
Posts: 64
Likes: 1
Bronco II no Start when cold
Bronco II 1988 195000 Miles i have had this bronco sense it was brand new.
Last week several days 20' or less it would turn over but wouldn't crank.gave it a shot of starter fluid still no start.wait a few hours weather warms up a little (25')and it cranks up no problems.i put new plugs ,wires,and distributor cap. still no start when cold.this just started happening last week.
Seems to be ignition related.
looking for ideas ,anyone with similar experience ?
Last week several days 20' or less it would turn over but wouldn't crank.gave it a shot of starter fluid still no start.wait a few hours weather warms up a little (25')and it cranks up no problems.i put new plugs ,wires,and distributor cap. still no start when cold.this just started happening last week.
Seems to be ignition related.
looking for ideas ,anyone with similar experience ?
Senior User
Joined: Nov 2013
Posts: 163
Likes: 0
From: Albany NY
I recall my 1988 Temp had problems starting in the cold weather and it was diagnosed as the throttle position motor was faulty. The ECU would try to raise the idle but the throttle plate did not move. They replaced the motor and it started with no problems in the cold.
In my case the car did start with a number of tries but would continuously stall.
Not sure if this might be related to your issue...Good luck!
In my case the car did start with a number of tries but would continuously stall.
Not sure if this might be related to your issue...Good luck!
New User
Joined: Feb 2014
Posts: 13
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No fire when cold
[quote=Bobbykjl;14041867]I recall my 1988 Temp had problems starting in the cold weather and it was diagnosed as the throttle position motor was faulty. The ECU would try to raise the idle but the throttle plate did not move. They replaced the motor and it started with no problems in the cold.
I'd check your coil out-put next time it does this.
I'd check your coil out-put next time it does this.
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Cross-Country
Joined: Mar 2006
Posts: 64
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finally got cold enough again to give me problems .so after some reading and trouble shooting in the dark . i do have a spark .i have a remote start ,so i was able to spay started fluid while cranking and it would start a run briefly.so it looks like it fuel related ,fuel pump relay or fuel pump. ill dig deeper when its daylight and i can see a little better whats going on.
i can hear relays clicking but i don't really hear the pumps running ,so i ll start with the relay .
i can hear relays clicking but i don't really hear the pumps running ,so i ll start with the relay .
5th Wheeling
Joined: Jul 2012
Posts: 25
Likes: 7
From: Camby, IN
You can depress the schrader valve and see if there is fuel at the rail. I'd put gauge on it and see what the pressure is. Might save you some time in diagnosing.
I'd also pull the vacuum hose that operates the fuel pressure regulator and see if it has any water in it. If there is enough, it will freeze and stop the vacuum, which will shut off the fuel flow, even if there is pressure to the rail.
I'd also pull the vacuum hose that operates the fuel pressure regulator and see if it has any water in it. If there is enough, it will freeze and stop the vacuum, which will shut off the fuel flow, even if there is pressure to the rail.
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