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Oct 5, 2009 | 07:46 PM

sustanetti

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please help

2006 5.4 shuts off while driving about once week, no codes

Oct 5, 2009 | 09:15 PM

torkum

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From: Mount Juliet, TN

Does it cut of instantly or runs rough then cuts off?

Oct 6, 2009 | 04:05 AM

scraprat

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From: Itinerant

If you want help you have to help us with more details than given. Whats your vehicle? When does it happen... coasting, accelerating, braking, towing, rough road, highway or city driving, info needed. But probably a short somewhere or a bad ground?

Oct 6, 2009 | 07:21 AM

sustanetti

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it's a f-150 5.4 supercrew 2006 47,000 mi.it
it shuts off with no warning, no rough idle or anything. it only happens on city roads when coasting or slow accel speeds. pull over, starts right up, then i have about a week before i have to worry about it again

Oct 6, 2009 | 07:55 AM

l-m tech

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From: duncan oklahoma

could be a throttle by wire issue.is your foot of the gas?

Oct 6, 2009 | 10:57 AM

sustanetti

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sometimes and sometimes not, just slow speeds
0121-tps
2101 tac
2112 idle forced
no engine light but these were just pulled, person that did this couldn't tell me what this means. thanks for replies

Oct 6, 2009 | 03:49 PM

scraprat

Lead Driver

Joined: Jan 2002

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From: Itinerant

P2112 - Throttle Actuator Control (TAC) System - Stuck Closed.

Here is a post from another forum that someone had similar problem.
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Oct 8, 2009 | 04:45 PM

LxMan1

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From: Louisville,Ky.

Try cleaning the throttlebody. The butterfly might be sticking in build-up in the inner wall.

Oct 9, 2009 | 11:35 AM

#10

l-m tech

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From: duncan oklahoma

install a new tps sensor and it should fix the issue.i have done 5 or 6 of them.

Nov 4, 2009 | 04:54 PM

#11

sustanetti

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new tps senser installed, thought it was fixed, today stalled safe engine mode. back where i started. what to try next?

Nov 5, 2009 | 12:26 AM

#12

g_k50

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Check your owner's manual, it might be under warranty.

Nov 5, 2009 | 06:01 PM

#13

sustanetti

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50,000 miles?

Nov 5, 2009 | 06:49 PM

#14

Luvsford

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I am having the same problem with my 2006 f150 supercrew with the 5.4L engine. It dosent happen everyday maybe once a month. I am very concerned with this and warranty has expired.