<TABLE style="BORDER-TOP-WIDTH: 0px" class=tborder border=0 cellSpacing=1 cellPadding=6 width="100%" align=center><TBODY><TR title="Post 10628516" vAlign=top><TD class=alt1>error codes
<HR style="BACKGROUND-COLOR: #d1d1e1; COLOR: #d1d1e1" SIZE=1>I'm stranded without a truck because the check engine light came on in my 08 F350 SD diesle 6.4L. 76K mi. The error code indicates something in the exhaust/ emissions. The Ford dealer can't find the exact problem so we are waiting for a Ford engineer to come and look. (could be 2 weeks I'm told) Anybody got any advise other than trade it in on a Dodge or GM? </TD></TR></TBODY></TABLE><!-- / close content container --><!-- open content container -->

 

what was the code..try EGT13 sensor

EGR has been known to do the same thing

 

Thanks for the reply Senix! They did replace the EGR but that didn't seem to do the trick.

 

whats the code?

 

the error code is P2452 any help is greatly appreciated.

 

If the dealer replaced the EGR it sounds like they are not following the correct diagnostic procedures.

P2452 - Diesel Particulate Filter Pressure Sensor A Circuit
Description: The powertrain control module (PCM) monitors the rationality of the diesel particulate filter pressure sensor during idle and part load operating conditions. The test fails when the diesel particulate filter pressure sensor signal value at idle is less than 0.15 kPa (0.022 psi). The test also fails when the diesel particulate filter pressure sensor signal value at part load is less than a minimum value or greater than a maximum value. These minimum and maximum values are based on the volume of exhaust.
Possible Causes: Diesel particulate filter pressure sensor connecting hose is loose, cracked, or missing
Diesel particulate filter pressure sensor connecting hose port is cracked or broken
Excessive amount of soot or ash in the diesel particulate filter
Damaged diesel particulate filter pressure sensor

Diagnostic Aids: Carry out a thorough inspection of the diesel particulate filter pressure sensor and connecting hose. If DTC P2463 is present along with DTC P2452, diagnose DTC P2463 first.

 

Did they look at the EGT13 sensor?

 

This appears to be a pressure issue instead of a temperature issue. If this is the only code present the EGT sensor shouldn't be involved.

I think.

 

I agree, just my gut says check it.

 

thanks for all of your help and advise. It seems that there are several error codes being recieved, and that's why a Ford engineer has been called in. I'll let you know when I hear more.

 

Several error codes can point to an electrical issue such as a chaffed or melted wire that is shorting out a reference voltage used by multiple sensors. The diagnostic procedures in the service manual cover such faults, if they need to call in a Ford engineer rather than understand and follow those diagnostic procedures, I would be leery of using that dealer's techs in the future.

 

Well we just got the truck back from the dealer. The Ford engineer found several connectors on the computer were corroded so they cleaned them (and I presume put some dielectric on). So you were right wp6529, sort of. I just can't believe the tech at the dealer didn't pull the connectors and look at them.
Thanks to all of you who offered advise.

 

Connectors are the biggest source of problems for all things electrical and electronic. Of course without connectors things become unservicable, so all you can do is try to use quality connectors and try to protect them.