|
Re: "Sluggish" 4.0 Explorer
"mike" <hillmw@charter.net> wrote in message
news:1133907158.948923.247120@g49g2000cwa.googlegroups.com...
> Prob #1 sounds like transmission. What happens when you shift manually,
> i.e. at the stop be un "L", then looking at the rpms and engine sound
> shift to "2", and ..... you get he idea.
>
> Prob #2 is your "ck engine" light on? Look at your plugs and wires.
>
Thanks for the reply.
No CEL. Plugs were replaced at 40k miles - no difference. Plug wires look
and 'seem' OK.
I'll try the 'manual' method tomorrow, but it's not gonna be a true test as
on the 5 speed auto box position '1' = 1st gear, pos '2' = 3rd, 'D' = 1,2,3
or 4 (or 5)
I'd be interested to know what system has replaced the kickdown mechanism on
earlier auto trannys? I think the truck 'doesn't realise' that I want it to
GO when I stomp on the gas - it seems to just wait around for the gearbox to
go through it's torque sensing routine and shift down the gears one by one.
If I 'stomp on the gas' at , say, 30 or 40mph the truck behaves just like
you'd expect and it will accelerate hard up to 100mph without any problems
(apart from the traffic cops) - it's just the take off from a low speed
rolling 'start' that's an issue.
Cheers
Simon H
|