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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

86 F150 problems at stop lights

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Old Nov 4, 2009 | 10:03 AM
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86 F150 problems at stop lights

I have a1986 F150 that I inherited. My granddad bought it new off the lot in 87 and then he died in 89. it sat there at my grandmothers house, with a little bit of use by the neighbor, until my dad got it off of her in '98 or so. I started driving it 2 years ago when I got my license and it has always run fine, until recently. recently it has started this thing where it doesn't want to idle smooth at a stop light or anytime I have to stop completly. I often have to keep one foot on the gas. and then when I go to leave the light it does not want to go. it will start and then act like it is going to stall and I have to play games with the gas peddle to keep it from doing that very thing. it has gotten to where I don't pull out in front of any traffic at all.
I will now say that I know very little about working on engines but I was hoping that somebody on here would know of an easy (cheap) fix because I don't have the money to take it to anybody right now.
oh and it is just a straight 6 engine. nothing special.
thanks in advance!!!!!
 
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Old Nov 4, 2009 | 01:02 PM
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From: coe hill on.can.
please give size of motor . is it a carb. model or fuel injected manual or auto trans.
 
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Old Nov 4, 2009 | 01:26 PM
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not sure about size or carb. motel. it is an automatic transmission.
I will get back to you about size and carb motel when I figure it out.
 
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Old Nov 4, 2009 | 01:55 PM
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From: Washington
Originally Posted by gatorJ50


oh and it is just a straight 6 engine. nothing special.
thanks in advance!!!!!
86 F150 problems at stop lights

1986 F150 with a straight 6 would be a 300ci 4.9 liter with a feedback carb and an EEC IV IGN system.
Auto = a C6 trans


I would try installing a blocker plate under the EGR valve as a no-cost way to see is the EGR valve is leaking exh gases into the intake.

Jim
 
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Old Nov 4, 2009 | 10:30 PM
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From: coe hill on.can.
check for vacuum leaks
 
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