No engine light..wtf?
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Tuned
Joined: Aug 2003
Posts: 386
Likes: 28
From: Garnett, KS
No engine light..wtf?
2003 F-250 5.4 auto
I've been wondering. Every car I've had, has the engine light illuminated on start up. The superduty doesn't. Ever. There are no historic or current trouble codes. I thought maybe the l.e.d. Was burned out, but the odometer bulb test (with the reset button) made it come on, so I know it's working. Any ideas? Not sure if it has a tuner, but I really doubt it. Everything is stock as far as I can tell....
And also.. Is there any way to tell what tire size the speedo is calibrated for, besides going to the dealer?
Thanks!
Frank
I've been wondering. Every car I've had, has the engine light illuminated on start up. The superduty doesn't. Ever. There are no historic or current trouble codes. I thought maybe the l.e.d. Was burned out, but the odometer bulb test (with the reset button) made it come on, so I know it's working. Any ideas? Not sure if it has a tuner, but I really doubt it. Everything is stock as far as I can tell....
And also.. Is there any way to tell what tire size the speedo is calibrated for, besides going to the dealer?
Thanks!
Frank
Super Moderator
Joined: Aug 2003
Posts: 25,479
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From: Isanti, MN
Originally Posted by 2004 Shop Manual
Malfunction Indicator Lamp (MIL) Indicator
The malfunction indicator lamp (MIL) indicator is
illuminated when a diagnostic trouble code (DTC) is
sensed in the closed loop by the powertrain control
module (PCM). The instrument cluster receives
engine data from the PCM via the SCP network.
The malfunction indicator lamp (MIL) indicator is
illuminated when a diagnostic trouble code (DTC) is
sensed in the closed loop by the powertrain control
module (PCM). The instrument cluster receives
engine data from the PCM via the SCP network.
Thread Starter
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Tuned
Joined: Aug 2003
Posts: 386
Likes: 28
From: Garnett, KS
Doesn't look like there is one. I've attached the relevant section from the '04 shop manual, and here's what it says...
The relevant sections are attached, take a look. The troubleshooting procedure for the MIL never coming on looks like it terminates with replacing the cluster if you rule out connections.
The relevant sections are attached, take a look. The troubleshooting procedure for the MIL never coming on looks like it terminates with replacing the cluster if you rule out connections.
Frank
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