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1506 dtc on a 2002 ford explorer

Have had it at the garage several times. they can not find any vacum leaks. This problem started after they replaced my valve cover gaskets. I have replaced the IAC and they replaced the intake manifold gaskets still getting the code after they say it is fixed please help

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Posted on Jan 02, 2017

  • 17 Answers

SOURCE: intake manifold cover

remove oil cap steam an it should just lift off

Posted on Feb 23, 2009

  • 33 Answers

SOURCE: 1995 Buick Park AV intake manifold gasket starting to leak

THIS IS VERY COMMEN IN FACT JUST ABOUT EVERY SINGLE 3.1AND 3.4 AND 3.8 EVER MADE BY CHEVY LEAKS AT THE LOWER INTAKE ALL OF THEM AND USEALLY STARTS AT ABOUT 50000 MILES THE PARTS COST ABOUT 300.00 AT THE DEALER FOR NEW GASKETS AND COOLENT AND SEALENT ALL THE PARTS YOU WILL NEED THE PROBLEM IS ITS ABOUT A SIX HOUR JOB SO THE LABOR KILLS YA BUT IT IS ALOT OF WORK BUT THE GOOD PART IS THERE IS NO NEED TO REMOVE THE PUSH RODS ON A 3.8 LIKE YOU DO ON A 3.4 I CAN GIVE YOU THE STEPS IF YOU LIKE BUT THIS JOB IS BEST TO SEND TO A MECHANIC AS IT HAS A LOT OF LITTLE THINGS THAT MUST BE DONE OR YOU CAN MAKE A BIGGER MESS THEN YOU GOT ALREADY... HOPE THIS WAS HELP FULL LET ME NO IF YOU NEED MORE INFO

Posted on Mar 27, 2009

  • 147 Answers

SOURCE: codes 171 and 174 2001 ford winstar

dont take soo much in consideration after you have make all this things, some time is on only for any wire faulty, or a shrt electrical arc in any place in wire system. ask auto tap mechsnics for this maybe they have similar case before.

Posted on Apr 06, 2009

  • 8 Answers

SOURCE: lower intake manifold gasket leaking 02 Olds Silhouette

This is basicly a very time consuming job rather than a physically hard one to complete. In order to replace the gasket you must remove the intake plenum,throttle body, and misc. vacuum hoses. The wiring harness connections must also be disconnected. Finally the intake manifold is exposed. The bolts holding the manifold to the block are removed exposing the leaking gasket. After removing the push rods and placing them in the correct order to be replaced the gasket and sealants can be removed. Finally replace everything in reverse order. Be sure to consult a GM manual for correct bolt torch specs. The correct specs for the manifold bolts usually come with the gasket. Make sure to change your oil a few times after this job in case any coolant entered the block. Also,change the thermostat and the oil seal on the distributor half shaft cap while you have everything off. Good Luck

Posted on May 12, 2009

chanddra2009
  • 615 Answers

SOURCE: Check Engine light code 1506

Dear Sir,

P1506 error refers to Idle Air Control System Overspeed Detected.
So solution is check your Air control system wires,and check air control speed once again.
If this not solves your problem back with the result,leave a feedback we happy to help you.


Have a nice day

Good luck


Posted on Sep 16, 2009

Testimonial: "Well, we have checked all the wires and hoses. All appear to be in good shape. Car runs very well. Should replace plug wires, plugs, gas cap, and BAC?"

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1 Answer

I have a P0456 code on my 2003 Ford Expedition. Where is the vapor purge solenoid or the canister?


The information you are asking for varies depending on how the vehicle is equipped ie. ENGINE SIZE, AUTOMATIC or MANUAL TRANSMISSION, 2-WHEEL DRIVE, 4-WHEEL DRIVE, ALL-WHEEL DRIVE, etc.
With that said, it also deserves mention that there is a Technical Service Bulletin published by Ford Motor Company that applies to the model year and model that you have listed that involves Diagnostic Test Code (DTC) P0456.

Please note that this bulletin emphasizes the requirement of special equipment to properly diagnose and repair the DTC's listed in the bulletin. Below is a brief (partial) description of the bulletin:

Article No.
03-20-3
10/13/03
DRIVEABILITY - MALFUNCTION INDICAOR LAMP
(MIL) ILLUMINATED WITH DTC'S P0442, P0455,
P0456, P0457, P1442 OR CHECK FUEL CAP LAMP
ILLUMINATED WITH DTC P0457
FORD: 1997-2000 CONTOUR 1997-2002 ESCORT 1997-2003 CROWN VICTORIA, MUSTANG, TAURUS 1998-2003 ESCORT ZX2 2000-2003 FOCUS 2002-2003 THUNDERBIRD1997 F-250 HD
1997-1999 F-250 LD
1997-2003 E SERIES, EXPEDITION, EXPLORER, F-150, RANGER, WINDSTAR
1999-2003 F SUPER DUTY
2000-2003 EXCURSION
2001-2003 ESCAPE, EXPLORER SPORT TRAC, EXPLORER SPORT
LINCOLN:
1997-1998 MARK VIII
1997-2002 CONTINENTAL
1997-2003 TOWN CAR
2000-2003 LS
1998-2003 NAVIGATOR
2002-2003 BLACKWOOD
MERCURY:
1997-1999 TRACER
1997-2000 MYSTIQUE
1997-2003 GRAND MARQUIS, SABLE
1999-2002 COUGAR
1997-2003 MOUNTAINEER
This article supersedes TSB 03-9-8 to update the vehicle lines and Service Procedures.
ISSUE
Some vehicles may exhibit a Malfunction Indicator Lamp (MIL) illuminated with Diagnostic Trouble Codes (DTCs) P0442, P0455, P0456, P0457 or P1442 or a "Check Fuel Cap" Lamp illuminated with DTC P0457 for the Evaporative Emission System. This may be caused by loose or leaking hoses, loose or broken fuel cap, a leak at the top of the fuel filler pipe neck, etc.
ACTION
Use the Rotunda Leak Detector Smoke Machine (Part 218-00001) or equivalent, to locate and repair leaks in the Evaporative Emission System.

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1 Answer

Heres the symptoms : engages but slips in reverse and drive, sometimes feels like partial brake applied. I have manual 1st and 2nd. When engaged in drive, you turn off overdrive and you can spin the...


it may be a bad transmission modulator valve located on the side of your transmission,vacum operated. a sudden downshift or forward shift when unexpected is sign of a bad modulator valve or a vacum leak to the transmission.best to shop around for a garage w/references when it comes to transmission work though. check all the vacum lines to your transmision,you need to look on the underneath side of your truck on the side of transmission for a loose or disconnected vacum line on the side of the transmission. when you feel the vacum line,follow it to the top of engine,the vacum line is about 3/8th line,and may be disconnected or losing air. to make this short,when you drive the car,start out in low gear and shift the transmission,manually from 1st to 2nd to 3rd does it do right with no slipping? if it does this right and shifts great manually,the modulator valve on the side of the transmissions bad,or a bad vacum leak in-between.thank you for choosing fixya.com

Apr 09, 2011 | 1998 Ford Explorer

1 Answer

When the car is in drive it idles up to 30 mph i got trouble p 1506


P1506 - Air Idle Control Over Speed Error

Replace the air idle control valve. Also check for vacuum leaks at the pcv valve / hose an any vacuum lines, to look for un-metered air coming in.


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Yes the P1780 DTC is the Transmission Control Switch Circuit is out of self test range.

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Check for vacume leaks. You are getting excessive fuel.The closed loop temperature is not getting reached.There for it is running too cool.Your sensors are fine.

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2 Answers

My 1991 ford explorerc xlt idles up and down


Check for vacume leaks and fix all that you find and if still does it check for codes...Could be several things causing this Mass Air sensor , Idle air control ......Most likely vac leaks or mass air .....Make sure air filter is clean

Nov 19, 2009 | 1991 Ford Explorer

1 Answer

1998 ford explorer with lack of power engine starts but rattles whole car at start and while driving down the road


I would check for vacume leaks in the engine area listen for air sucking like a vacume ...You can spray a small amount of throttle body cleaner on vac lines and the motor will rev up or bogg down that is a leak and need to fix all vac leaks ........If check engine light is on have your codes checked ....hope this helps

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1 Answer

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look for a vacume leak. black smoke means it is running very rich

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1 Answer

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check all vacum lines starting with the pcv valve vacum line. check while engine is running ,lisen for air leak.if u have a vacum leak then this will set these codes.

Jan 16, 2009 | 1998 Ford Explorer

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