Question about 1990 Ford Ranger SuperCab

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Hard start skipping on no.1 cly.lost power now wont start

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Coil out

Posted on Oct 13, 2013

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What is wrong when it's cold and my 1998 Trooper powers down with the ABS light, the battery light, and the four wheel drive light blinking


that is called a STALL.
the engine was running , but now its STALLED.
and all lamps come on that is a Feature of all cars. (modern)
the that is the lamp self test. same as when you first turn on the key.
the operators guide explains all that...........
so the real question is why it stalls.
it means the engine is running so bad the EFI brain could not avoid the stall, it tries REAL HARD not to stall.
we do tests to find true cause. but usually its this.
1: engine never tuned up. the 60,000mile service POINTS skipped.
hark it fails. (99% of all old cars do that, due to skips)
2: LOST spark , see #1
3: lost fueling, see #1 filters. or worse.
4: flooding, over fueling. more tests.

got tools? or just want guesses?????


Jul 24, 2014 | 1998 Isuzu Trooper

1 Answer

Intermitent dieing


metro, 1.0Liter>? 3cyl

or the LSI with the 4 cylinders.? TBI and not MPI

yours is TBI, One injector engine MPI came out in 1998.

your car has OBD2 computer so any scan tool will show

why spark is gone (if). (precursors ) cranked for 5seconds,



(what does has fuel mean? wet spark plug tips?)

got spark? it stalls and wont restart have half hour>?

intermittent engine stalling. seems starts cold and fails hot engine.



on all EFI, (besides a tune up) we check this.. (a full 60k tune up?)



1: if you loose 12vdc main power, at stall>? (dash lamps dim or die,

head lights dim or die? bingo!

no.

2: can you save the stall with a fast right foot?

a: easy (isc stuck closed?)

b: tad hard. (EGR main stuck open or or low fuel pressure)

c: impossible. (lost spark or near zero fuel pressure, 10PSI is no good.

which is it? and is #1 key to solving any EFI stalls !!!

3: lost engine compression say hot, never set valve lash ever? or cam belt slips or has slipped. ever do a 60k belt on cam, ever?



4: bad spark, weak, or dead, at fail, if spark timing is way off (check it) that mean the cam belt is bad and slipped. 60k mile service skipped.

5: bad fueling, (last) and the most complex.





that is the correct order, you can skip around but it only delays the discovery.

1 Bad DC power, 2 bad compression,3 bad spark 4bad fueling.

Example1:

you key on, and get CEL glowing, most likely the ECU has power

as that lamp tells you it has.

then you find its flooding, 99% are never tuned up, or lost spark

you check spark its gone, you check that cam spins (oil filler hole)

you connect scan tool and crank for 5seconds, the tool shows

CKP or CMP bad. the DTC error codes will tell you!!!

if spark is good, use the operators guide , for flooding

it says :crank at wide open throttle to clear foods"

it starts, and floods again. oops.

you check spark timing.and find the timing way off, retarded.

bingo the 60k belt slipped, fix belt.

you check compression (it should have been first) and find its 80psi

not 150 PSI (W.O.T)

belt slipped. (they all do , ignored, )



lets do one more,

: example.2

spark good,!

timing good on dizzy!

compression as spec. 150 x3 or 4.

it floods.

i find fuel pressure at 60PSI , 2 times spec.

i find the regulator bad, it fails all 6 tests in the fSM on this device.

or the fuel return line is clogged.

hope his helps. post engine size, and cyl. count.

and if ever tuned up this decade.

Feb 05, 2014 | 1997 Geo Metro

1 Answer

My car, polo 1.6 2003 starts den dies almost immediately


why does the blue box say 2005 swift and 03 polo?, confusing , so I will answer in the generic. (any modern car)

any engine dies for vast reasons, I have a list of 50 .
but breaks down to 4. (in pure physics) Otto cycle engines, GAS.

1: lost DC 12volt power to the EFI system( electronic fuel injection)
2: lost compression on more or all cylinders, 150psi min. is a goal.
3: lost spark, weak spark or mal-timed spark.
4: bad fueling, (too little , or too rich fuel injection)

The ECU works hard to sustain running, via idle speed control valve
and spark timing tricks.
when the above 4 go bad, the ISC function fails and the engine
stalls.
so does, skipping 60,000 mile tuneups. that cause any of the 4.

Jan 17, 2014 | 2005 Suzuki Swift

1 Answer

Vehicle drive smooth then all of a sudden the wheels starting to tighten car slow down.


what makes you thing the tires/wheels tighten (felt by hand off ground?)
my guess , you meant it seems. like???
1: lost engine power?
2: transmission not up shifting?

is this a auto A/T or manual M/T tranny,
if A/T , you need to look at the engine RPM when you lose
power (acceleration on demand)

RPM rises, car dont move faster ,this is tranny slip.
RPM fails to increase, and speed, up hills. this is called lost engine power.
lost engine power can be caused by , bad spark (tuneups skipped?)
or weak fueling.
weak fueling too can be cause by skipping the fuel filter step in the tune up list.


Nov 26, 2013 | 1995 Jeep Cherokee

1 Answer

96 corsica wont start when hot replace crank sensor and still does it 2.2 any help


nice guess. hot soak failures.
you failed
you failed to check spark, if spark is good, then it not that.
4 spark plugs tested,(ever tune it up?) and use a timing
light to see if it hits everytime and on the mark,
yes, timing lights work on cranking motors,
they do not prove spark intensity only test spark plug does that.
when hot? what's hot?

does that mean out door too hot or engine coolant.?
we have 85f temps now. air temp.. but you?
so... no location stated. make any help at all hard.
hot engine no starts.
1: engine gets hot and looses compression
2: lost spark. (yes, the Cam sensor can fail hot block. yes)
3: lost fueling, or floods,?
the tests are simple and do them in order to save huge wastes of time and guessing and huge wasted cash on useless parts.

you could just watch scotty. it gets this right. (skip ad)
http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp

Oct 13, 2013 | Cars & Trucks

1 Answer

Cylenders 1 and 4 wont fire


the coil pack that cly 1 and 4 wires go to need to be replaced

Jul 20, 2012 | 2000 Saturn SL

2 Answers

Brake pedal hard and vehicle wont stop. intermittently


either is is a bad booster (hissing noise) or the vacuum line is disconnected the vacuum line is located on the left side of the vehicle on
on the right side of the booster

Sep 23, 2009 | 1999 Ford Expedition

2 Answers

I have a 2001 cougar 4 cly. suts off when break is applied


check for shorts and bad or corroded connections

Sep 13, 2009 | 2001 Mercury Cougar

2 Answers

95 Honda Accord 6 cly wont start


well honda's are natorious for the computers going out also check the ignition relay,fuel pump relay,make sure it is getting fule.also check the timing belt

Dec 04, 2008 | 1995 Honda Accord

2 Answers

Need to know firing order


6 cly firing order is 1-5-3-6-2-4
8 Cyl firing order is 1-8-4-3-6-5-7-2
4 cly firing order is 1-3-2-4

Oct 30, 2008 | 1986 Jeep Comanche

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