Need help
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Joined: Mar 2020
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Need help
Hello!!! New to the v10 world. I have a 2001 excursion with a 124,000 miles on it I bought it last weekend. It had two codes p0352,p0353 so I did a tune up all coils and plugs all ford parts . It has not thrown any codes but at idle it runs really rough But when I get it over 2500 rpm or so it runs really smooth. I have cleaned the throttlebody and the mass airflow sensor any ideas what else I should look at?
Lead Driver
Joined: Apr 2011
Posts: 8,259
Likes: 346
From: Northern California
cover the basics,
spark
fuel
compression
since you covered spark, maybe try moving the injectors from the misfire cylinders to different ones and see if the code follows them.
if not then look at compression in the misfire cylinders.
spark
fuel
compression
since you covered spark, maybe try moving the injectors from the misfire cylinders to different ones and see if the code follows them.
if not then look at compression in the misfire cylinders.
Tuned
Joined: Sep 2019
Posts: 418
Likes: 4
From: Tacoma, WA
Hello!!! New to the v10 world. I have a 2001 excursion with a 124,000 miles on it I bought it last weekend. It had two codes p0352,p0353 so I did a tune up all coils and plugs all ford parts . It has not thrown any codes but at idle it runs really rough But when I get it over 2500 rpm or so it runs really smooth. I have cleaned the throttlebody and the mass airflow sensor any ideas what else I should look at?
Moderator
Joined: Jul 2010
Posts: 12,049
Likes: 1,547
From: Media PA
Hello!!! New to the v10 world. I have a 2001 excursion with a 124,000 miles on it I bought it last weekend. It had two codes p0352,p0353 so I did a tune up all coils and plugs all ford parts . It has not thrown any codes but at idle it runs really rough But when I get it over 2500 rpm or so it runs really smooth. I have cleaned the throttlebody and the mass airflow sensor any ideas what else I should look at?
Go back through it and check that each COP to harness plug is positively clipped in, its common for the retainer clips on those plugs to fail, if you find one or two that aren't clipping in you wrap a small cable tie on it until you get the replacement pigtails.
Check for vacuum leaks. Look at the PCV hose, those sometimes will crack.
Since it's an '01 with the short spark plug threads, what did you torque the new plugs to?
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