2007 Taurus bucking
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Senior Member
Joined: Aug 2008
Posts: 105
No more bucking but now a new code
I took it back to auto zone and the code came up P-443 Purge canister problems. I checked the wiring connector and it looked ok. Is there anything else I can check myself.
Junior Member
Joined: Jan 2016
Posts: 9
I am from Holland but living in the Dominican Republic I bought a Ford Taurus sel 2009 fine car but the last two months he is bucking at a speed off around 45 miles, here are no technicians who are able to solve it or give me an answer I am not a technician but I like to change first the spark plugs for sure they are,t changed the last 45000 miles (cas milage 125000) can somebody explain me ( sounds stupid I know) how to find the spark plugs thx
Junior Member
Joined: Jan 2016
Posts: 9
Thx for your reply my engine is the 3.5 6 cil : 1FAHP24W79G125533. I don,t know howmany HP the engine has, thank you in advance
Junior Member
Joined: Jan 2016
Posts: 9
Also I want to mention I purchased a new battery and several times while driving the red light turns on and after a short time turns off again maybe is a part off the problem??
Senior Member
Joined: Jun 2010
Posts: 16,529
If you can, use Google and type in;
Ford 3.5L DOHC Spark Plug Replacement-YouTube
The movie shows and explains the procedure to replace the spark plugs. After looking it over it will help you decide if you want to do it yourself or have a shop with the right tools do it. Spark plugs do not always come with the correct gap and should be checked before installation.
Which red light , battery, brakes?
A failing alternator can give some of those symptoms.
Ford 3.5L DOHC Spark Plug Replacement-YouTube
The movie shows and explains the procedure to replace the spark plugs. After looking it over it will help you decide if you want to do it yourself or have a shop with the right tools do it. Spark plugs do not always come with the correct gap and should be checked before installation.
Which red light , battery, brakes?
A failing alternator can give some of those symptoms.
Last edited by hanky; Jan 3, 2016 at 10:20 AM.
Senior Member
Joined: Jan 2007
Posts: 2,209
From: Yorkshire, NY
Another item that will cause bucking is the TPS. If driven with the TPS in a consistent spot, it can develop a "DEAD" spot (0 ohms). This spot will tell the computer to shut the injectors "OFF". It is a momentary signal that causes the "BUCK" as the TPS position crosses the "DEAD" spot. It's most noticeable when trying to maintain a certain speed as the TPS constantly crosses the area back and forth.
Junior Member
Joined: Jan 2016
Posts: 9
Another item that will cause bucking is the TPS. If driven with the TPS in a consistent spot, it can develop a "DEAD" spot (0 ohms). This spot will tell the computer to shut the injectors "OFF". It is a momentary signal that causes the "BUCK" as the TPS position crosses the "DEAD" spot. It's most noticeable when trying to maintain a certain speed as the TPS constantly crosses the area back and forth.
Junior Member
Joined: Jan 2016
Posts: 9
Thx I did find in Google the meaning of the Tps the subscription in Google gives me the feeling that this wil be my problem I will go and visit the Ford dealer in the capital here I will post the results