09-27-2009, 04:58 PM
Join Date: Aug 2009
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Low boost & exhaust back pressure issues my story thus far
Hello new person here also.
I recently purchased an 05' F350 FX4. It had 109k on it when i bought it. 5 days after leaving the dealership, the CEL came on. Took it back to the dealership knowing I bought it as is, just wanted to them put the code reader on it and tell me what was up.
First they informed me, of the exhuast back pressure sensor issue, and they'd need it over night.
By the next day it was seemingly a frayed wire that they taped up and fixed.
5 days later light on again. So I took it to the shop that does all the work on our propane bulk trucks. He told me it was turbo low boost and exhuast back pressure sensor.
So we ordered and installed the new sensor. Everything was fine for a whole 7 days and then light back on.
It was then suggested to clean the EGR which was done, and light on again. Next suggestion clean turbo.
So I took it to a different shop to price how much that might be. Well low and behold this shop tells me its the exhaust back pressure sensor. I'm like now way I just replaced that. He told me that tested it with the ohm meter or whatever its called, and apparently it not dropping back down to zero and therefore I guess not letting the valve close all the way.
I've been dealing with surging or now power issues occasionaly when leaving a stop sign and sometimes while cruising up a grade.
Any thoughts as to why this might be happening? Also if I go with an EGR delete kit, will this solve the problem also?
I Thank you in advance for your time and advice.