Knocking during heavy accel V-10
Posting Guru
Joined: Oct 2002
Posts: 1,253
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From: Del Rio, Texas USA
people are going to give you allot of advice, but id try running higher octane gas and try the same hill with the same load and see if it goes away....its an easy trial, and probably will do the trick.
Postmaster
Joined: Feb 2002
Posts: 3,496
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From: Calgary Canada
The V10 is equipped with multiple sensors to detect knock/ping and adjust both timing and fuel ratios accordingly. It was designed to run at 100% with 87. It ran perfectly on 87 for 40,000 right?
It's hard to say what the problem is - Sensor gone bad? Dirty injectors? Intake? Exhaust? Fuel Filter? Carbon buildup? Maybe even just a bad tank of fuel. Does the truck flash any codes?
I'd start with a basic tuneup and maintenance.
Running higher octane gas might solve the problem short term, but IMHO, it's a band aid fix, and it'll cost you a lot extra cash.
Waxy
It's hard to say what the problem is - Sensor gone bad? Dirty injectors? Intake? Exhaust? Fuel Filter? Carbon buildup? Maybe even just a bad tank of fuel. Does the truck flash any codes?
I'd start with a basic tuneup and maintenance.
Running higher octane gas might solve the problem short term, but IMHO, it's a band aid fix, and it'll cost you a lot extra cash.
Waxy
More Turbo
Joined: Oct 2001
Posts: 552
Likes: 0
From: Alexandria, KY USA
I have had the same problem, at 69,000 miles. Tried different gas stations, and different octanes. Had my dealer regap my spark plugs which were out .006" and do an injection service. This didn't help right away. Afterwards, I got a tank of 93 octane gas, and put in a bottle of STP injection cleaner. I'm still on that tank, but, so far, no pinging. Will let you know if it starts when I get 87 octane next time.
Bluehawk
Bluehawk
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Joined: Aug 2003
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Thanks for the advice
Appreciate the info - I don't know about the codes - its going in for a 4X4 issue this week I'll find out then. In the meantime I'll try 93 and some injector cleaner.
I'll have 'em tune it up/filters etc. while its in as well.
Thanks
I'll have 'em tune it up/filters etc. while its in as well.
Thanks
