2005 rough idle help
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Logistics Pro
Joined: May 2004
Posts: 3,612
Likes: 877
2005 rough idle help
Hi guys,
I am posting for a friend that called me with a rough idle and poor performance from a take off, NO DTC"S. Once the truck is driving all is normal.
History on the truck: EGR delete (sneaky pipe), New FICM last year, rail plugs done.
To me it sounds like a sticky EGR but then again, the manifold is blocked off but CCV still flows through the manifold. He has not checked FICM voltage and his alternator output appears to be normal, according to the idiot light/gauge in the truck.
Any ideas I can give him to check over the phone?
Thanks
Joe
I am posting for a friend that called me with a rough idle and poor performance from a take off, NO DTC"S. Once the truck is driving all is normal.
History on the truck: EGR delete (sneaky pipe), New FICM last year, rail plugs done.
To me it sounds like a sticky EGR but then again, the manifold is blocked off but CCV still flows through the manifold. He has not checked FICM voltage and his alternator output appears to be normal, according to the idiot light/gauge in the truck.
Any ideas I can give him to check over the phone?
Thanks
Joe
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
I am going to Guess Fuel Issue or Boost
If his EGR is Blocked then that wont be it
A Boost issue could be from Charge Air Leak,Exhaust Leak,Map,EBP,BARO,VGT,MAF,Or Turbo Problem
Boost relies on Exhaust Gas to spin the Turbine so that means everything from the Air Filter to the Tailpipe must work Properly
That Said might be worth throwing your ScanGaugeII on the truck
Has he done fuel filters recently????
Any Smoke???
If his EGR is Blocked then that wont be it
A Boost issue could be from Charge Air Leak,Exhaust Leak,Map,EBP,BARO,VGT,MAF,Or Turbo Problem
Boost relies on Exhaust Gas to spin the Turbine so that means everything from the Air Filter to the Tailpipe must work Properly
That Said might be worth throwing your ScanGaugeII on the truck
Has he done fuel filters recently????
Any Smoke???
Thread Starter
|
Logistics Pro
Joined: May 2004
Posts: 3,612
Likes: 877
The only bummer is he doesnt have a fuel pressure gauge but i did do the blue spring for him last year. The contribution test is done how? Specialized equipment or can a scangauge help with that?
Thank you
Thank you
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