I have a 2001 ford supercrew cab and for the last year it has started
skipping and jumping while running at 35 to 45 mph or while going up
hill slow but at 50 mph on up it runs fine. and sitting at an idle it
dont skip a bit will someone please give me some ideas to what might
Try turning off the overdrive and see if the symptoms change.
Persoanly, I would clean the throttle body and the MAF. Might not help, but
probably won't hurt. I'd also change the fuel filter (but this is probably
I would suggest that you lift the hood and look at the engine
after you have driven any distance in a hard rain, if that is
what you believe. Better yet lift the hood after driving in a
hard snow storm and look at all the snow packed around the
So your saying a couple of cubic feet of drift snow that , in melted state
is maybe a quart of water is the same as water out of a pressure washer @
1500 psi ?????????????
Like I said, its you car , go for it, I'll pass.
I am sure a lot of seals on the sensor connectors doesn't hold out water
@1500 psi or more
And I suggest to anyone that doesn't know how to replace the boots on there
coilpacks on there F150 and clean out there sparkplugholes not to do it .
If your car starts to run on 6 or 7 cylinder during a rainstorm its early
enough to have it checked out.
Not really. A heavy rain blowing under the hood is quickly
turned to steam which will penetrate virtually everything
under the hood in just a few minutes.
I have been keeping them clean for over 45 years now. The
last 25 or so, I have used a 1700 psi washer which was
replaced by a 3000psi unit about 10 years ago. I have never
lost a sensor to moisture with the exception of a few MLP
sensors on some Fords which were upgraded by Ford for this
reason - it had nothing to do with washing - just everyday
driving in the elements. I have seen many secondary voltage
leaks as a result of dirty connectors and boots. I find
that excess grease, oil and debris tends to collect more
moisture resulting in problems than a periodic cleaning with
a pressure washer. Have spent most of my life in a warm
climate and investigated many vehicle fires for insurance
companies, I have seen too many fires as a result of oil and
grease caked engines resulting from small leaks that went
unnoticed on the filthy engines. A clean engine is much
easier to maintain and seems to run a bit cooler in hot
weather. The trick is to dry the engine by warming it until
it is dry. Do not wash it and leave it to air dry over the
weekend or you may have problems.
All of that being said, you will find that most well
maintained fleets routinely wash down the engines with a
pressure washer. Many of them use a hot water pressure
washer. A few still use steam cleamers for the hard cases
especially when repairs are being made. The OTR Diesels
also use much higher control voltages than in passenger cars
and light trucks which makes them much more likely to
experiance problems from dirty connections. Many fleets
expect these vehicles to operate relliably in excess of
1,000,000 miles. They do nothing that will increase cost or
Lastly, a lot of technicians don't care to work on an engine
that is excessively grubby unless allowed to clean it up
first. I don't like getting my own hands any dirtier than
necessary when it is easily cleaned. It is just plain
easier to maintain and repair. There is no reason not to
keep it clean.
I guess we will never agree on this, sure you and I can clean our engine,
let it dry and fix it when it has a misfire and don't spray to much on the
But most of the people here cant find there airfilter if there life was
depending on it, so I keep with my statement, don't clean your engine
(Ofcourse I don't mind the 2.8 hrs labor for replacing plugs and boots on
there F150 during our monsoon and spring rainstorms or when they hosed the
engine down when washing there car)
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