Chug Chug Chug - During Acceleration
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Freshman User
Joined: May 2009
Posts: 38
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From: Grand Forks
Chug Chug Chug - During Acceleration
1995 - F150 - 8 Cyl 5.0 EFI - Mannual 5 Speed -
Just Changed The Fuel Filter And The TPS ,
Was Running Ok The First Day , Now I Get Chug Chug Only During Moderate To Heavy Acceleration,
Smooth Combustion At Constant Speed.
Also The Tachometer Seems To Dip Down A Hair Intermittently At Idle.
Fuel Pump ?
I Did A Self Test And Got - 111/111 (KOEO) And 111/111 (CM)
Checked The Distributor Cap And Contact Points Along With All Connections,Wires And Plugs ( Plugs And Wires Are Old And Due ).
Can't Hear Any Vacuum Leaks And The Fuel Line Checks Out All The Way.
Any And All Help Is Welcome,
Thanks In Advance.
KEATING
Just Changed The Fuel Filter And The TPS ,
Was Running Ok The First Day , Now I Get Chug Chug Only During Moderate To Heavy Acceleration,
Smooth Combustion At Constant Speed.
Also The Tachometer Seems To Dip Down A Hair Intermittently At Idle.
Fuel Pump ?
I Did A Self Test And Got - 111/111 (KOEO) And 111/111 (CM)
Checked The Distributor Cap And Contact Points Along With All Connections,Wires And Plugs ( Plugs And Wires Are Old And Due ).
Can't Hear Any Vacuum Leaks And The Fuel Line Checks Out All The Way.
Any And All Help Is Welcome,
Thanks In Advance.
KEATING
Freshman User
Joined: Jun 2006
Posts: 28
Likes: 0
1995 F-150
5 Speed
302
keating I chased the same problem for months. Took all the steps as you have and your doing a good job. Just stick with it. My case was:
Fule pump
I was told to check the fuel pressure at idle and then under load. Be carefull and you'll need help checking it under a load, but the fuel pressure dropped.
I changed the pump and its ran perfect ever since.
Let me know if theres any thing else.
5 Speed
302
keating I chased the same problem for months. Took all the steps as you have and your doing a good job. Just stick with it. My case was:
Fule pump
I was told to check the fuel pressure at idle and then under load. Be carefull and you'll need help checking it under a load, but the fuel pressure dropped.
I changed the pump and its ran perfect ever since.
Let me know if theres any thing else.
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