Mbl35

We just changed a harness on an 08, if you still need it i could send it to you.

A hotline engineer once told me that there's been some reports that microscopic cracks in the hole that fastens the injector holddown causing oil to get into the threads causing them to loosten up. The engineer instructed me to blow compressed air into the holes to remove any oil-which i do anyway. All the ones i saw loose were from previous techs not using a torque wrench.

These 6.0 are just fucked up. You got your common stuff and the curveballs oh yea curveballs. Gotta love the 6.0.

Just to check , on Tues. i will swap in a pcm just to be sure, but i doubt it. I beleive i covered all other bases on this, unplugging sensors like icp, ebp etc when i first checked it and nothing changed until i repaired the chaffe then i had a pedal. I also load tested signal return circuit with all sensors on that line for map, baro, waterfuel etc unplugged with a lightbulb and it was ok.

No dice on that. I was able to drive it 30 miles. It had lots of power, drove it pedal to the metal then on decel coming off of a bridge i lost the pedal and the wrench light came back on, i had just enough speed to get off the exit and safely park. Then the towtruck towed my ass back to the shop. Well i'll get back on it after the holiday.

Yea, i found the blue wire for the vgt solenoid chaffed from rubbing on the dipstick tube, i repaired that. I also found the lower bulkhead connector very loose. Now i got a pedal, i dove it 3 miles to dinner and the pedal is fine, no stalling but it keeps giving a p0107 map baro correlation code anf pending code, the map is 15.7psi and the baro is 18.5. Koeo map is 16.5 and baro and ebp is at 14.6. The map hose is ok and clean and i swapped in a map sensor just to be sure. The hotline engineer was right on the money when he said there's a problem in the map signal return somewhere possibly at the splice. I manually checked vref and it's ok. Now i'm going to overlay the map sensor circuit and possibly the baro to-there's a hole in yhe bulkhead large enough to accomodate the 3 wires.

Checking an 08 e350 32339 miles on it for no pedal at all this very moment. Has a wrench light and check engine lt. It had a shortblock installed at the dealer in april and a week later our shop up north had to replace the vgt pigtail. I'm going to try a few things but i'm leaning towards a harness. Has high idle function with e-brake and a whole mess of codes. This is my first no pedal concern on a 6.0.

Check all battery connections thuroughly and remove and inspect the ipr, the screen may have separated.

I had 4 like that, the last one it was doing it constantly, it was rough at idle and the power ballance was all over the graph when you rev it up, it was overfull with oil by 10 quarts. The other three were ipr's-last one being an 08, came in on the hook with dead batteries, needed alternaters. After the repair i took it on a test drive when i noticed a slight hesitation on the highway, power ballance showed misifires jumping from cyl. to cyl. I rnr the ipr after high pressure oil airleak test passed. The screen had a little hole in it. The other two also needed ipr's.

Got an 05 e350 ambulance just out of service for the crew smelling fumes. Saw it as i was going to clock out just before. I traced the fumes to the degasbottle, opened it and it reeks of deisel-oh joy!

Yup, and it's not just ford i've seen this on. On gm i've seen this, once on a 99 minivan-forgot the name of it-venture, it was oveheating and the fans were not turning on, the fans and circuitry were fine, turns out the pcm was faulty. Another on 04 impala, it had a code for evap vent valve circuit, the vavle and circuit to the pcm were fine, a new pcm fixed it. On the japanese stuff it was usually ecu failure caused by water leaks and heatercores leaking coolant down into them. Speaking of that static activity in the area, i think i posted somthing to that effect in feb. about an ambulance that just shut off for no reason and 2 other cars in traffic next to it shut down as well-weird.

Usually it's the 4.2l that has the egr misfire problem, when egr is comanded and the egr ports in the intake manifold are clogged with carbon and all egr flows to the unclogged port or ports and thats when the misfire occurs. On the 4.6l i believe pre obd2 the throttle body pedestal or air horn's egr passage gets cloged up with carbon and causes stalling at idle and flickering of the check engine lt. with an egr code. I'd check mode6, swap ign. cables and spark plug to another cyl, check for coolant leaking into the sparkplug well, a steamcleaned sparkplug, oil fouled sparkplug-it could have a leaky valve stem seal, warn plug etc. If all that and compression is good swap an injector with a good fireing cylinder and see if the misfire moves. Usually vacuum leaks on these are in the pcv system or evap intake line conection, also i think there is a vacuum line conection in the baclk of the intake that commonly leaks.

Yea, thanks. I think it's just that. But i just wanted to be sure because of what you must do to change it out. Almost every time i change a module it's just faulty and thats it. I also forgot to mention in the 1st post that i also had a faulty steering module on an 06 escape hybrid, it was sitting in the lot and when they went to move it for pdi the steering was stiff. All the circutry checked out fine. install it and steering ok-good thing for the steering shaft. Anyway the abs mod's on order. I just like to be sure with modules and certain sensors that i never changed before and don't recall them as being common to fail.

This is in a bitch location and i never had to rnr an abs mod on an escape before. Im just wondering if there's anyhting else i could be missing like pcm cluster. I recall having to change out a few smj on 05 and 06 both on reg. escapes and a hybrid. Anyone?

Yea, the problem was i could'nt stay on it consistantly.

I got it completed on monday and drove it 190 miles over 3 days. The bottle is nice and dry no more burping. The coolant stays at the fill line.

Got an o8 escape 3.0, has abs, brake and trac lts. on. No comunication with abs module and no com network code in cluster and pcm for abs. Checked all powers and grounds with a lightbulb and all are ok. Tested hs can data bus to dlc and checks out ok. I guess the abs module is faulty-as per the pp test in the ws manual. Anyone else had to change an abs module on one of these for a no comunication issue?

I've worked with 2 ase certified mechanics before, one guy did not how to change a timing belt(indy shop) and the another guy could'nt find a blown fuse or diagnose a flat tire and he also could barley exeed 35 labor hours a week-mostly cpo and it was busey-that was them. Those tests are pretty difficult though, the last time i took an ase exam was in 95, i did not study and failed the test by one point and i never looked back. But anyone that can pass those tests i respect them because the questions are pretty difficult. Some guys could be really exellent techs-able to diag and repair anything that rolls into their bay, but maybe they just are not good at taking tests. One time at ford school there was one tech from south N. Jersey that was sitting next to me during the test and all his answers were blank and asked me to copy my answers-he was sweating bullets and the a/c was so cold i wished i took a sweater with me. Though talking to the kid it seemed like he knew his stuff. Over the years though i took advantage of any training i could get whether it was classroom or web. We have web training with access to classes(as long as you have the prereqs) through ford fleet.

Is it true in the early 90's ford discontinued all classroom training for a while and guys had to get there certs on self training?

Yikes.

Thats good to know since we change a pile of them.

Yea, in the short time i've been wrenching on diesels i've seen similar concerns on 7.3 caused by fuel restrictions. On 6.0 mostly cat or maf hose-split at the nipple on the intake not always setting a dtc right away and making it feel like a transmission concern.

You know it could be a coolant heater actually because i could not find the part description and a picture of it in the workshop manual. There is an exaust pipe coming out of the thing but only one fuel line going in. I learn more and more about these duramax every time i touch them. I think though on the part invoice it was listed as a fuel heater.

No, i beleive it's made in Germany by some company-forgot the name but it also says generalmotors on a sticker thats on the part. Webasto, don't they produce the moonroofs on fsereis and navigators?

Yea i got to start jumping the ipr's and pulling valve covers on our stalling 7.3's. We got a few 7.3's that stall out on occasion and hard start when cold, they had icp's replaced and connerctors for oil intrusion. Mostly the day crew sees them, i'm usually too busy at night to check them. If it ever slows down around here and i get a chance i'm gona do this on these intermittant stallers, it's a real pain in the ass to do on e-series though and thats the only thing we got with 7.3 in it.