Just to update you on my problem, in March my check engine light came on. The mechanic found that O2 sensor was bad and replaced it, since them my right idle problem has stopped and my gas mileage has improved.

 

JVB,
THANKS FOR KEEPING US UPDATED. LET US KNOW HOW THE TRUCK RUN OVER THE WEEKEND. HOPE EVERYTHING GOES OK WITH IT.

 

DONW,
AREN'T THERE MORE THAN ONE O2 SENSOR?? WHERE IS THE ONE THAT THEY REPLACED LOCATED??

 

JUST ANOTHER UPDATE. ALL THIS TIME I HAVE BEEN ON THE BOARDS I NEVER GOT A SERVICE ENGINE LIGHT UNTIL YESTERDAY. ANYONE KNOW HOW I CAN TELL WHAT IT IS?? TRUCK SEEMS TO BE RUNNING THE SAME AS IT USUALLY DOES. I DONT HAVE A CODE READER. ARE THEY EXPENSIVE?? OR IS THERE ANOTHER WAY TO TELL THE CODE?? MY TRUCK NOW HAS 39,500 MILES IS THIS SOMETHING THAT MAY BE TRIGGERED BY MILEAGE?? THANKS

 

Just got home from Ford Service. I had them look at a problem with the soot in my exhaust and a hesitation when under load.

What they found was a bad #4 coil caused by the leaky clamp. Seems to have improved idle and power but not able to put the load to it.


1999 F150 XLT SCab Styleside
5.4 4x4 SB ORP 3.55 Limited Slip
Gibson Super Truck Exhaust
K&N filters
Husky floor liners (it is a truck and this is WV after all)
Ford vent visors and bug shield
Ford Tonneau cover
Ford bed liner
Cupped and tread bare Goodyear 17 inch tires

2001 Honda Foreman 450ES
26in Titan 589 M/S tires
ITP Steel Wheels
Kimpex Cargo Box and Cooler rack
K&n Filter and Quaker Synth Oil

BRAND NEW ! Stock CD and speakers (when you have the Super Truck exhaust, what better music is there? :-)

 

Have a 2002 F150 supercab 4.6L V8 that has shaked since about the 3rd day I owned it... first trip into the service department was at 400 miles. They have told me the same lines of crap they have told everyone else on this post. I already have the new motor mounts and they even loosened mine up and have the engine reset into them. It is just a small shaking feeling and it drives me nuts like you all. Been told they are also working on a ECU update to address this problem. I will add my information to the other site and keep myself posted here.

This seems to be the active thread so I am posting here so I can be included in everything.

 

HELLO ALL,
SORRY I HAVEN'T BEEN AROUND HERE THE LAST MONTH OR SO. UNFORTUNATELY ME AND MY WIFE LOST THE LIFE OF OUR
10 YEAR OLD SON ON MAY 20TH. AND HAVE BEEN DEALING WITH THIS ORDEAL SINCE MAY 10TH WHEN HE PASSED OUT WHILE AT SCHOOL. I WAS KINDA HOPING TO COME AROUND AND MAYBE FIND SOMEONE HAD FOUND A FIX TO OUR ROUGH IDLE PROBLEMS. ANYWAY I AM BACK AND STILL TRYING TO FIX MY ROUGH IDLE AND WILL PASS ON ANY INFORMATION I CAN

 

36racin -
I am very sorry to hear about your son. I have 2 daughters and hate to hear bad things happening to other Ford family members.

 

THANKS TN_TRITON,
I WOULD HATE TO SEE ANYONE ELSE GO THRU WHAT ME AND MY WIFE WENT THRU AFTER HIS PASSING OUT AT SCHOOL AND THE WHOLE ORDEAL AFTER THAT. LETS JUST SAY I THOUGHT CAR DEALERS RIPPED PEOPLE OFF!!!!!!!!!

 

Just bumping this up to the top for 36racin & the rest of you. I know he has been thru an awful ordeal since losing his son & doesn't get on as much as before.
Hopefully there will be a fix soon for everyone w/this problem.
Hang in there 36racin - I have 2 Churches praying for you as well as family & friends. God Bless to you & your family.

 

Cowlady,
Thanks for helping out, listening and praying for us. Friends are what we need right now and we seem to have a good deal of them here. Thanks

 

Just checking back in and putting this topic back at the top. I am still having the rough idle problems. Thanks for all the support everyone has given me.

 

These trucks should run smooth. It is 2003 now. With the current breed of electronic engine management systems these engines should be smooth as silk. Engineering tolerances are higher than ever. When my 98 4.6 was new you couldn't even tell it was idling, one time I turned the key to start it and it was already running .... damn quiet. It's a little rougher now but I have a heavy foot. I'm getting a bit of a burp/bang out of the exhaust at WOT acceleration. Lately it's also pinging quite a bit so it's probably time to replace and clean out EGR components, also have to clean the MAF sensor wire which I haven't done for a while... darn K&N oil.

 

P-FERLOW,
DO YOU KNOW IF THESE ENGINES HAVE KNOCK SENSORS ON THEM LIKE THE OLDER TRUCKS DID? MY KNOCK SENSOR WENT BAD ON MY 92 FORD AND MESSED THE TIMING UP WHICH COULD MAKE THE ELECTRONICS LEAN OFF THE MIXTURES AND CAUSE THE PING.

 

As far as I know they do. I don't think mine is working either. Thinking of removing the intake piping up to the throttle body and running it while spraying water with a small fine mist sprayer into the throttle body. The fine mist of water turns to steam in the combustion chamber effectively steam cleaning the heads/pistons/valves. Or so I've been told. Makes sense anyhow.

Otherwise I'm going to check every bit of the EGR system to look for clogged components, also the IAC valve might be stuffed up.

HEY, CAPITAL LETTERS MEAN YOU'RE SCREAMING!