Question about Ford F-150

Open Question

Service engine soon., pro.'s did all of the following. mas flow cleaned, plugs changed, injecters all changed, cats all changed, all four 02seners new. What's next???

Posted by on


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Ok sooooo here we go again with more issues with my wifes 2003 beetle convertable. So i took it to autozone the other day because she mentioned to me that about hqlf way home from work her gas pedal was...

p 0031 is the heated oxygen sensor1 bank 1 replace itit is the one in the exhaust manifold before the cat converter
code p 0037 is the heated oxygen sensor in the other bank in the exhaust manifold before the cat converter code p 0418 refers to secondaryair injection(AIR) pump relay--circuit malfunction===replace the relay
code p 0102 refers to tye mas air flow (MAF) and the volume air flow(VAF) sensor ===causes --wiring short to ground---MAF/VAF sensors
code p 2188 refers to system too to rich at idle bank 1 by replacing the both heated oxygen sensores and cleaning /replacing the MAF/VAF sensors it should fix the problem

May 14, 2017 | Cars & Trucks

1 Answer

Hesitancy sputter

is the check engine light on? check for mas air flow sensor

Feb 01, 2014 | Toyota Tercel Cars & Trucks

2 Answers

1999 Chevrolet Silverado, 5.3, 1500, 148K Miles. Problem when cold it has a miss under a load, but it will idle good. After warmed up no problem. After checking for a vacuum leak we replaced the following:...

This is just a stab in the dark, have you checked the hydraulic lifters? I had a similar symptom on a 4 cylinder engine and it turn out to be a stuck valve lifter.

Oct 22, 2013 | 1999 Chevrolet Silverado 1500

1 Answer

Multiple cylinder mis fire and then 300 301 302 303 304 codes also on can you help me out in anyway please its starts bucking around 60 mph have changed #2 cat mas plugs wires coil now i am...

those codes are telling you what you already know you have a miss fire. 300 is multiple and 301 thru 304 is the individual cylinder. could also be a fuel injector,or the injection system, bad gas or fuel filter ,vacume leak,realy it could be alot of things you have replaced plugs gapped correctly checked your wires and replaced your coil. so look to vacume leaks and injectors.
if you dont have a do ityourself book i suggest you invest if you plan to keep the car, and i suggest you dont buy exspensive parts unless your absolutly sure its the problem.easy check for mass air flow with engine at an idle tap on the side with the plastic end of a screw driver if the idle stumbles your mass air flow is going bad. it might not be your only problem only you know when you had the services done on your 10 year old car

Aug 11, 2010 | 2000 Kia Sephia

2 Answers

PO420 code-service engine light is on

P0420 Catalyst System Efficiency Below Threshold (Bank 1) first thing to do is go back to basics do a tune up (plugs) check the plug wires spray them with water or windex if you get a miss change them, run some fuel injector cleaner through it, don't just throw parts on it ,that is'nt cheap

Mar 24, 2010 | 2002 Nissan Altima

1 Answer

Service engine soon MAF sensor?

the maf (massive air flow)sensor is the sensor is on the engine side of the air filter assy box. there is 1 wire connector to un plug it usually two hose clamps, sometimes four bolts

Mar 20, 2010 | 1999 Pontiac Grand Prix

1 Answer

My prelude is reving up and down while in park its a 92 fuel injected

That sounds like the mas air flow censer or the throttle position censor to me, I had a 1991 nissan fair lady z which did the same thing when they went out. Try removing it checking the wiring plugs, and cleaning the plugs and censors with electronic cleaner (you can purchase that at a local autozone)

Jan 26, 2010 | 1992 Honda Prelude

1 Answer

2001 gmc safari flashing service engine soon light

id check mas air flow sensor maybe 02 sensor might bet the mas sensor

Oct 06, 2009 | 2001 GMC Safari

1 Answer

1994 park avenue

Check you Mas Air Flow sensor or MAP sensor.

Oct 19, 2008 | 1994 Buick Park Avenue

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

20 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

76673 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers


Level 3 Expert

5537 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides