Question about 1990 Ford F150

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I have a 1990 Ford F-150 with the 300 in-line 6 cylinder. It recently developed a miss at idle and under a load. plugs, plug wires, distributor cap, and fuel filter have been changed with no success.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Recently replaced my fuel pump,

you might try checking the catalytic converter.. it could be clogged... not letting the engine breathe like it needs to

Posted on Aug 15, 2008

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SOURCE: 1990 jeep cherokee won't idle

Try the Throttle Position Sensor. Maybe O2 sensor but I'd start w/ the TPS.

Posted on Sep 18, 2008

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SOURCE: 1990 Ford F-150 flooding very badly

ok change the coolant temp sensor it will make it rich if it is bad good luck.

Posted on Nov 24, 2008

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SOURCE: 1990 Celica GT #4 cylinder is misfiring intermittently

shaft seal in dist is bad may be able to replace might have to replace dist

Posted on Feb 20, 2009

suterman
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SOURCE: ford bronco 1990 sputters at 3rpm

It sounds as if you have a fuel system problem or either the exhaust may be stopped up. Have the fuel pressure checked it should be at or near 30-35 lbs if not you may need to replace the fuel pressure regulator or the fuel pump. Both are common on parts to fail.

Posted on Jul 02, 2009

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RE: Johnny brown- 2003 Sebring multiple cylinder misfire 3.0 New distributor new crankshaft sensor new plugs new wires good compression injectors good... Installed new EGR started with cold engine and


ENGINE MISFIRE

There are few possibilities that can cause engine misfire issues. It can be issue with spark plugs or faulty spark plugs. Also get the compression test done for cylinders. If any of cylinder shows low compression then required, then that particular cylinder will cause misfire.

Also get obd codes scanned, the error code will let you know which cylinder is misfiring or all cylinders are misfiring.

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For your trouble shooting I suggest you to refer the help oinks below. It has step by step details for many engine misfire issues.

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Click the link below:-----


Ford Explorer Cylinder Misfire?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-cylinder-misfire.html

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Engine Misfire codes on Chevrolet Malibu?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Cylinder 6 Misfire?

http://howtobyme.blogspot.com/2011/12/cylinder-6-misfire.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Ford Explorer 5.0L: Engine Miss?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-50l-engine-miss.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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Can cylinder misfire Damage the Catalytic converter?

http://schematicsdiagram.blogspot.in/2012/02/can-cylinder-misfire-damage-catalytic.html

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Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

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Chevrolet K1500 No spark, random misfire

http://repairhelpcenter.blogspot.com/2012/11/chevrolet-k1500-no-sparkrandom-misfire.html

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2004 Ford F150: Engine Misfire and Lean Code?

http://whatisbyme.blogspot.in/2012/05/2004-ford-f150-engine-misfire-and-lean.html

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1995 Toyota LS: Misfire at idle or low RPM

http://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html

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Toyota Corolla: Random Misfire?

http://technoanswers.blogspot.in/2012/04/toyota-corolla-random-misfire.html

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2006 Ford Freestar: Misfire on Cylinder Number 2?

http://whatisbyme.blogspot.in/2012/06/2006-ford-freestar-misfire-on-cylinder.html

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This will help.

Thanks.

Dec 09, 2012 | Cars & Trucks

1 Answer

What parts for basic tune up for 1990 ford f150 in line 6


Plugs, plug wires, Distributor cap and rotor.PCV Valve at least checked. Fuel filter and air filter if dirty.

Jul 02, 2012 | 1990 Ford F150

1 Answer

Won't idle, runs rough under throttle


Check all of your tune-up parts. (Distributor Cap, Distributor Rotor, Spark Plugs and Spark Plug Wires) Also perform a compression test if no problem is found with the tune-up parts. Check also for vacuum leaks and the Intake Air Control Valve (IAC) for the "won't idle" problem.

Apr 10, 2011 | 1990 Ford F350

2 Answers

1990 Nissan Stanza 2.4 Liter Engine miss. This is a used car we just bought, has 112,000 miles on it and it only happens when I put the transmission in drive or reverse. It does not happen when in park....


could just need a tune up,you could also pull of the distributor cap and look for oil intrusion, if there is you will need to replace the distributor

May 27, 2010 | 1990 Nissan Maxima

1 Answer

1995 Thunderbird LX 4.6 V8 Cylinder Location, Distributor Wires


Which ever plug you changed you need to follow that plugs wire to the dis. cap and that should be the wire. chrismoss

Apr 11, 2010 | 1995 Ford Thunderbird

1 Answer

Its not hitting right in the motor , its running on 5 cylinders when its a 6


Missing on a cylinder is always an ignition system problem. Replace plugs, plug wires, coil/distributor unit. Make sure your plug wires are routed right. Make sure timing is right. This should fix your problem.

Nov 26, 2009 | 1990 Toyota 4Runner

1 Answer

Change plugs and wire and engine will not acclerate. This is a built 350 short block chevy with pro charger.


350 Chevy engine in what? 1990 Corvette? Who built it, did you?

Sounds as though you have plug wires wrong.
Firing order is 1-8-4-3-6-5-7-2

Distributor Ignition System:
Distributor rotates Clockwise. (Rotor)
Find Number 1 tower on distributor cap, go Clockwise with Firing Order.

Distributorless Ignition System:
VIEWING the engine from the Front of the car.

Spark plug wire connections along the back, starting from Left side going to Right side;
2-3-7-4

Spark plug wire connection towards the Front of the engine;
6-1-5-8

(To guess I would say you have 5 and 7 wires switched)

Left side cylinder order is 1-3-5-7, going from front to back.
Drivers side is Left side.
Right side cylinder order is 2-4-6-8, going from front to back.

Oct 13, 2009 | 1990 Chevrolet Corvette

2 Answers

'83 Monte Carlo - Miss fire at idle/accel./driving


You can have car put on scope and it wll show any irregularities in the ignition system. It can also be dowithout any equipment. First, loosing ALL 8 spark plug wires, Now place the spark plug wires loosly back on, just secure enough to secure. You might need 2 people. Being the miss is more consistant in gear, APPLY THE EMERGENCY BRAKE , put trans into drive and raise rpm's till miss is obvious. Remove ONE plug wire at a time, TILL THERE IS NO DIFFERENCE IN MISS. Thats the cylinder missing. Start with the spark plug, inspect, work back to wires and cap. An EXTREME result will be NO COMPRESSION.

Apr 02, 2009 | 1983 Chevrolet Monte Carlo

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