Question about 2003 Ford F150 Regular Cab

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Engine rinning rough

Engine pulsating whtle idiling in park no light or code need help

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3 Answers

I had a similar problem for some time then finally had a code which was lean fuel from air being sucked in through the manafold leak beyond the injectors.

It turns out that there is a TSB for a manifold leak which requires a new intake manafild gasket and bolts.

Luckally I had an extended service agreement or it would have cost me hundreds...

Good Luck!!!

Posted on Oct 16, 2008

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He is right i had one come into our shop the dealer couldent figure out turned out to be a crack in vacume hose was oil soaked from the back of intake

Posted on Oct 10, 2008

Check vacuum lines

Posted on Sep 27, 2008

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I just drove my wh statesman v6 super charged for bout an hour stopped on side of road to answer a call and my engine light came on and now idiling rough while in park. What could it be


There can be numerous issues that can cause this. The next step is to have the car scanned for fault codes so a proper diagnosis can be done from there.

So take the car to Holden service or to a competent Holden specialist that has the right scan equipment for your car and knows these engines.

Dec 09, 2015 | Cars & Trucks

1 Answer

HI NEED HELP WITH MY ISUZU TRUCK , IDILING IS ROUGH, SOMTIMES IT GREAT AND SOMETIMES IS ROUGH, WHEN DRIVING IS EXELLING? AND WHEN STOP AND LIGHTS ITS QUITE ROUGH AND SOMETIME IS OK,


no car stated or year. (1990 or 2015) huh?
must we guess, car body model, and engine type>
those codes are not use here in uSA, or our online factory data. (this is a USA forum...)
so in what country, after all injection systems vary by engine type and country. (smog rules etc)


the diesel is misfiring
that means wrong injection rates. or far worse.
why not get it serviced.
or is DIY and buying tools in the cards.
check filters ever?

is this diesel direct injected.?

left field post
i googled this, boy is this car obscure.
NKR81E is a truck not a car/
in fact a huge truck
in fact 4770cc engine. not expected here.
known as the ELF.
right?
best is to post a photo of car so us greengo's can go .gee what is that monster....2c6b82b1-d312-42f3-8b64-a64214d91e46.jpg

so what year?

OK,,, found this...
The 4HL1 is a common rail direct injection OHC 16V high-pressure fuel injection system diesel engine of 4.777L capacity with electronic control system. Peak torque is 333Nm, peak power is 140 PS (103 kW) at 3,000rpm. Maximum Torque is (34.0 kg-m)'/1,500rpm. Bore is 115 mm, stroke is 125 m


did you scan it yet?
clean filters?

here is our top uSA site for answers,
by pros

http://www.justanswer.com/medium-and-heavy-truck/7u7ir-2005-isuzu-npr-4hl1-engine-engine-run-likes-no-power.html

Aug 03, 2015 | Isuzu Pickup Cars & Trucks

1 Answer

My 98 blazer idils rough in drive at 500 rpm check engine light on pi codes 301, 452, and 125 are coming up what could be wrong


Drive to your nearest auto parts store and they will check your car's engine light for free. they will also tell you what those codes mean. When was the last tune-up?

Dec 19, 2014 | 1998 Chevrolet Blazer

1 Answer

93 3003 MERCEDES 2.8 DIDNT PASS SMOG NO CHECK ENG LIGHT ON SMOG GUY SAID EGR STUCK IDILES A LITTLE ROUGH BUT RUNS GOOD AT HIGH SPEEDS WHAT DO I DO?


run the fault codes to ensure that the EGR valve is faulty. Engine lights to not always come on unless there is something drastic going on with the engine /gearbox so that you can stop the car before damage is done.

Apr 25, 2014 | 1989 Mercedes-Benz 300-Class

1 Answer

2001 volvo s80 rough ideal below 40 mph especially when the ac is on. Also if i press the throttle while in park or in drive at low speed the ideal gets rough (pulsates and often stalls).


SOUND IDLE AIR CONTROL VALVE NOT WORKING PROPERLY.IT SHOULD STEP UP IDLING WHEN YOU TURN ON THE AC TO KEEP ENGINE FROM STALLING OUT.

May 31, 2011 | 2000 Volvo S80

1 Answer

My friend has a 94 jeep cherokee that has rough idiling and shuts off randomly. sometimes it'll restart immediately and sometimes it'll take some time before it'd restart. what san cause this?


possibly a vacuum leak , or external coil, the coil could be braking down due to heat and age of coil, i have had some that had bad coils and the engine would not want to restart untill cooled down, does' your engine light come on, if so , you need to have a code tester to check for trouble codes that the computer might have picked up if any, hope that this information was helpful.

Feb 13, 2011 | Jeep Cherokee Cars & Trucks

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Is there anywhere to download chiltons manuals free online


there is no such thing free, if you need info just post then some one may be able to help you

Mar 25, 2010 | 1993 Geo Prizm

1 Answer

Check engine light on idling rough


NEED TO CHECK YOUR IGNITION COILS JUST REPLACED MINE AND RUNS GREAT

Apr 11, 2009 | 2003 Volkswagen Passat

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