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I can't remember what a smooth idle was like on my '05, it's been years since it idled anything but rough, the way 4-cylinder carb'ed engines idled 30 years ago.
My truck has 130K on it and is running great. Stills accelerates and runs like new.
My TB is clean and I have new plugs, the factory Delco iridiums.
Would have gone with the Nippondesnso plugs but my opportunity to pull the plugs came unplanned a couple weeks ago and the Delcos were all I could lay my hands on.
I've had the Nippondenso plugs previously and it didn't make any difference in the idle that I could feel.
The coil packs have less than 15K on them. Idle was bad before I replaced the coils also.
I've tried every gas I can buy, and I run 92 octane (which has nothing to do with idle, but..)
Thing is, if I go 5 miles to pick up groceries, it may idle reasonably smooth at one traffic light, then at the next it'll be idling like an old tractor.
I run either Lucas Deep Clean or Sea Foam in the tank about twice per month.
What else can I try?
My truck has 130K on it and is running great. Stills accelerates and runs like new.
My TB is clean and I have new plugs, the factory Delco iridiums.
Would have gone with the Nippondesnso plugs but my opportunity to pull the plugs came unplanned a couple weeks ago and the Delcos were all I could lay my hands on.
I've had the Nippondenso plugs previously and it didn't make any difference in the idle that I could feel.
The coil packs have less than 15K on them. Idle was bad before I replaced the coils also.
I've tried every gas I can buy, and I run 92 octane (which has nothing to do with idle, but..)
Thing is, if I go 5 miles to pick up groceries, it may idle reasonably smooth at one traffic light, then at the next it'll be idling like an old tractor.
I run either Lucas Deep Clean or Sea Foam in the tank about twice per month.
What else can I try?