Engine "surges"
Hello All;
1985 F150, 6 cyl, auto, When in Park - Idlles fine, driving down the road smoothly, and shifts properly. Stopped at red light, still in drive foot on the break, slow idle, and the engine surges. Doesn't stall, but shakes a bit, and seems like it's trying to pull forward. Not powerfully, but idles down and surges.
Any thoughts?? All new points, plugs, distributor, fuel pump, etc etc.
Regards
Hal
1985 F150, 6 cyl, auto, When in Park - Idlles fine, driving down the road smoothly, and shifts properly. Stopped at red light, still in drive foot on the break, slow idle, and the engine surges. Doesn't stall, but shakes a bit, and seems like it's trying to pull forward. Not powerfully, but idles down and surges.
Any thoughts?? All new points, plugs, distributor, fuel pump, etc etc.
Regards
Hal
You should put ALL your truck's details & history (as much as you know) into your signature so it shows with each post, as this page explains:
(click this text)

Phone apps don't always show signatures, so you may need to switch to a real browser in desktop mode on your phone, or just use a desktop/laptop computer. Put your location (nearest city) in your profile &/or signature, & upload an avatar of the truck. The more pics you post (NOT in your sig) of the truck, engine, wiring, labels, & undercarriage, the more likely we can help you. Not all its details are relevant to these issues, but you don't necessarily know which ones are relevant, so just put everything in now.
In addition to its maintenance, damage, repair, & modification histories, you also need to fully-describe the history of this symptom. But it's unrealistic to expect a 40-year-old cheap pickup to idle & drive as smoothly as modern vehicles. It probably didn't idle very smoothly when it was new.
(click this text)
Phone apps don't always show signatures, so you may need to switch to a real browser in desktop mode on your phone, or just use a desktop/laptop computer. Put your location (nearest city) in your profile &/or signature, & upload an avatar of the truck. The more pics you post (NOT in your sig) of the truck, engine, wiring, labels, & undercarriage, the more likely we can help you. Not all its details are relevant to these issues, but you don't necessarily know which ones are relevant, so just put everything in now.
In addition to its maintenance, damage, repair, & modification histories, you also need to fully-describe the history of this symptom. But it's unrealistic to expect a 40-year-old cheap pickup to idle & drive as smoothly as modern vehicles. It probably didn't idle very smoothly when it was new.
You should put ALL your truck's details & history (as much as you know) into your signature so it shows with each post, as this page explains:
(click this text)

Phone apps don't always show signatures, so you may need to switch to a real browser in desktop mode on your phone, or just use a desktop/laptop computer. Put your location (nearest city) in your profile &/or signature, & upload an avatar of the truck. The more pics you post (NOT in your sig) of the truck, engine, wiring, labels, & undercarriage, the more likely we can help you. Not all its details are relevant to these issues, but you don't necessarily know which ones are relevant, so just put everything in now.
In addition to its maintenance, damage, repair, & modification histories, you also need to fully-describe the history of this symptom. But it's unrealistic to expect a 40-year-old cheap pickup to idle & drive as smoothly as modern vehicles. It probably didn't idle very smoothly when it was new.
(click this text)
Phone apps don't always show signatures, so you may need to switch to a real browser in desktop mode on your phone, or just use a desktop/laptop computer. Put your location (nearest city) in your profile &/or signature, & upload an avatar of the truck. The more pics you post (NOT in your sig) of the truck, engine, wiring, labels, & undercarriage, the more likely we can help you. Not all its details are relevant to these issues, but you don't necessarily know which ones are relevant, so just put everything in now.
In addition to its maintenance, damage, repair, & modification histories, you also need to fully-describe the history of this symptom. But it's unrealistic to expect a 40-year-old cheap pickup to idle & drive as smoothly as modern vehicles. It probably didn't idle very smoothly when it was new.
Hal






