Question about 1987 Ford F 150

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On a f150 5.0 on cold starts it will miss an then after it warms up the miss goes away

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Your timing is off.

Posted on Oct 30, 2010

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What will be the problem if i have a taping noise when i start my car until it gets warm mitsubishi 380


A tapping noise that starts out cold and goes away when warm is usually caused by a valve lifter inside the engine. The lifter may be worn/leaking down and will be noisy until it fills with oil pressure. You can try an oil additive ( Lucas Oil Additive ) available at most part stores works very well with noisy lifters. Another noise that can happen cold and go away when warm is an exhaust manifold leak. However, this is normally a ticking type sound rather than a tapping sound.

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Engine miss when cold, engine light on, new gas, air filter. fuel pump in tank. hot engine loght goes on off, when off at stop stalls out engine light off.


Diagnose Engine Misfire - Auto Diagnosis Repair Help

www.aa1car.com/library/misfire.htm
The engine may shake so badly at idle that it causes vibrations that can be felt in ...The engine may only misfire and run rough when cold but then smooth out as ...

What is causing an intermittent misfire only when engine is ...

community.cartalk.com/.../what-is-causing-an-intermittent-misfire-only-...
Jun 27, 2013 - NOTE: You MUST restart the engine for the misfire to go away. ... in an expert to do that test, but it might be worth it to prove/disprove the injectors being thecause. 0 ... The first is that the car should run fine even on cold starts.

Engine misfires when cold but runs fine after warming up few ...

https://answers.yahoo.com/question/index?qid...
Mar 24, 2009 - They also gave it to me because of this misfire problem it has. ...Engine misfires when cold but runs fine after warming up few minutes later? ... and you start next morning will also cause a misfire until it burns off the coolant.

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Cold start misfire solved (finally!) - Bimmerforums


Dec 16, 2015 | Cars & Trucks

1 Answer

On a cold start my car has a ticking noise. I've got a Chrysler neon 2000 Le


If it goes away after the engine warms up it is likely loose pistons or worn piston skits. As long as it goes away after the engine is warm it won't hurt anything. It is common on engines with some age on them. When the engine get hot the pistons expand and the noise usually goes away.

Mar 04, 2011 | Chrysler Neon Cars & Trucks

1 Answer

Missing at cold start both codes po171 and po174 runs ok on the road and after warmup stops missing


year make and model would help a lot.

P0171 and P0174 are lean codes. Since it is running rough at start up and goes away when warm it is usually a sign that the plenum gaskets are leaking. If this is a pickup with a 5.3 liter than for sure the intake plenum gaskets that go in between the intake and the heads are leaking. Very common problem. Once the engine warms up everything expands and the leak seals itself up.

If you can post the year make model and engine size I can help you out a little more.

Nov 28, 2010 | Chevrolet Tahoe Cars & Trucks

1 Answer

Missing of engine in idle or parking when cold


not normal. bad spark plug wires they may be gapping or jumping spark. also maybe coil pack is doing same thing.

Apr 23, 2010 | 2005 Toyota Corolla

1 Answer

I hear knocking when motor runing


WHEN COLD THEN GOES AWAY WHEN WARM. THATS NORMAL FORGED PISTONS SLOP WHEN COLD.I HAVE 01 SILVERADO WITH 390,000 RUNS GREAT 21MPG 40TO50 PSI OIL PRESSURE KNOCKS WHEN COLD THEN GOES AWAY. NOT A PROBLEM. IF IT DOSE IT WHEN WARM AND LOW OIL PRESSURE WORN BEARINGS NOT GOOD.

Jan 26, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

Car wont start up right away


Crank or cam sensor probably as plugs bad plugs would start but miss the sensor will either give a start or no start condition and on 1 truck the crank sensor went out and it would run cold but miss like crazy when warm,I work in a chyrsler shop and have never seen that happen and even a scan tool didn't pick it up.

Mar 09, 2009 | 1998 Jeep Cherokee

1 Answer

Miss on cold start up


Have you checked the oxygen sensor? If the engine is running lean, then it would behave the same as you described. Those sensors should be replaced every 80K or so.

Sep 05, 2008 | 2002 Chevrolet Avalanche

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