I replaced the plug/coil wires and ever so slightly stretched the springs so I knew they went onto the plug and used wd40 so they slid in easily. Of course I once again blew out each hole. Ohmed out each coil and injector. All good. Added half tank of 93 octane with a bottle of 108 octane boost...

You know smokey that kind of rings a bell with me. my number 6 wire/boot was really hot. it may be cracked. So dang hard to diagnose in the engine. My son has one of those heat reading guns. I can read the exhaust manifold and go from there. thanks bro. I'll let you know when I find it incase it...

I accidently posted this in the Gen 10 150 forum. Well I have an 02 250 SD 5.4. It has developed a miss when accelerating. You can ease of it a little and it clears up.Only acts up when acceling. I had this problem 23 times before. it was either a coil or moisture in the plug boot/wire. I pulled...

My truck is an 02 250 SD 5.4. It has 83K. I have had an issue with stumbling on acceleration. If you ease off it will clear up but get on it then it misses badly. I had this before but found either a bad coil or moisture in the plug hole. i pulled them all. ohmed thhe coils. WD40d the holes...

It was #3. Bad coil. I appreciate yall so much. I just came in from my shop and made sure to let yall know. Thanks guys. god bless yall very much. smilieFordlogo

Many mny thanks my great friends. i will replace the tps just for good measure but I will get a new coil or two and start replacing them to track down the bad one. I did a resistance check on them but I know under load and heat problems do pop up. I will post the answer once I find it so maybe...

I had made a couple posts on this in the gen 1 250 SD section so please forgive me. I have a 2002 F250 SD with a 5.4. It started to have a small miss upon acceleration and has gotten worse. it only misses on acceleration. Idle is smooth and say if you get up to speed and ease off the throttle it...

Good point blacksnapon. Rattle can advised me to keep chasing those coils. I did ohm the resistance os them and the injectors but of course that won't show a partially or blocked injector.

Basically the same as you had mentioned. I bought one new one since they are so expensive and I had put it in the hardest to get one #4 with no change then put #4's old one into #3. I will keep switching them around until I go through them all. #8 is extremely hard so I'm going to put a new...

My 5.4 misses on acceleration. Last time I had water in spark plug hole #3 but this time all my coils are good, plug holees are dry but my pcv won't check either way. Could the pcv be the culprit?

Thank you DB. Hopefully my son will be able to bring his analyzer by but I amy have found the trouble. Water all around the 3rd cylinder back. All around where the boot goes down to the plug. I better go dive into it. Thanks again.

my 02 F250 with a 5.4 is missing. It misses on acceleration only and smoothes out usually after gaining speed and letting off the throttle. Idle is very smooth. I appreciate any advice.

How do I identify if my front diff is a DANA 44 or what it is. I am going to take out the manually locking hubs like I did on my older F250 years ago and lost my spanner hehe. I am going to get a new spanner but need to know if it's a Dana 44. Thanks guys.

I have an 02 f250 SD. I changed the front caliper but can't figure how to get the 2 spring clips in the are basically in a V shape and hooks into each pad I think for anti-rattle. Is there an easy way to get them in and will it actually hurt to no use them?

I have a 2002 F250 with 5.4. I want better mileage and plain beter sound. If I just plain remove the cat will it make my truck run badly or will it improve my mileage and sound much better? BTW I've removed the stock mufflet fir a cherry bomb with no noticible change and replaced the air filter...

I had 2 bad plug boots. they were letting water in. After drying it was running well. I bought 2 new boots for #s 2 and 3 cylinders. it was running fine but after installing it now misses. i took them off 3 times to recheck and cleaned the connections where the spring attaches. Being my first...

My 2002 F250 Super Duty is running fine but at 78,000 miles is it better to run any special type of oil or synthetic as it gets older? Thanks.

Hello. Sorry I started out in the gen 10 with questions but I needed help and got it. Thanks. I am a recent convert from GM since they were sold to China. I had a 2010 gmc but I will NOT support the selling of America. I sold my gmc and bought me a 2002 F250 Super Duty. 5.4 is all I need. The...

Thats what it was. Thanks guys. I appreciate the help tremendously!

Hey thanks. I do hear a slight tick like an electric arc. Thanks men. I will post my results!

Well I havent hooked it up. Im just watching the dash at the moment. I live miles from an auto place. I was hoping for an easy answer but thats not my luck haha.

I just purchased a used 02 F250 Super. Ive had it 3 days. 5.4 l. 77,000 miles. I filled it up with 93 and added Luca oil injector cleaner. It was fine. Last night I sprayed out under the hood trying to wash some farm dust off. Didnt run it. Today its missing badly. No codes. Any ideas where to...