After running highway speed then stopping, the EBP valve is partially closing as you accelerate back up to speed. You can hear it in the sound of the motor, and you can see it on EGT's, which are rising quickly. This happens briefly then corrects. We unplugged the EBP sensor and the problem continued. Tube is clear.
If I monitor the EBP sensor, what values should I see if it is functioning properly?
Coming home from the shore and turned of the air but not blower. No speeds at all. Fiddled with it until I got to a rest stop. KOEO, tapping the blower did nothing and swapping relays did nothing. 40 amp fuse and inside #22 ok. Had some time last week and discovered that power to blower was intermittent. Pulled the resistor pack plug and it was partially melted and upon removal of resistor pack I could see it was toast. Replaced that and pigtail and still got intermittent blower and intermittent voltage at blower connector.
Days go by with only a chance of it working but noticed it turned on more when I started the truck with the blower motor switch turned on. Maybe bad contacts somewhere or maybe loose connector in harness I thought. I had been meaning to replace some burned out cluster bulbs with new LED's, so I bought a motor switch and did both items. Left the front dash part off because nothing changed as far as the blower was concerned.
I downloaded the schematic to end the frustration and see the power going into Mode Selector switch, black/yellow. My test probe gets nothing through insulation with KOEO. Pulling the connector and probing the contact of the blk wire and I get blower all speeds but no light glowing from test probe as if I just grounding it. I have to add that 1/2 the time I got not blower and 1/2 the time I did, so It was intermittent there as well. Doing this again several times while restarting the key to run and still the same until after about 8 times, I finally get a light on the probe, probing the wire while its connected and I get it now with it disconnected and all seems ok. I have blower each time for the last dozen restarts and I cant make any sense of it.
I just have a feeling this good heat isn't going to last. Should I replace the Mode Selector Switch? It seems the relay coil wasn't energizing but now it is. Last week I shot the relay seat with contact cleaner and replaced it with new napa one out of frustration.
So I've been chasing a problem in my 07 6.0 for about 6 months now I had just changed the oil cooler and a week later was driving home and she quit a mile from my house I have since then changed the cmp sensor the alternator 3 injectors all the o-rings in the nipples of my oil rail both down tubes in the oil rail and the IPR valve most resently and last night I hooked it up to me auto engenuity scanner and the IPR valve is still not closing it stay at 14.84% the whole time I'm cranking. The only code I'm running is cmp sensor low a cuircut or something like that I can't remember the number.
View 14 RepliesSo I just put billowed up pipes and changed the broken O ring in the turbo housing. Put everything back together and checked for a boost leak with the home made tester. Boots and everything ARE OK. I can hear air escaping from what seems to be the valve cover or intake. I realize that I am charging my crank case as well but it still concerns me that air is escaping from somewhere besides the CCV. I read the following forum and this guy had the same issue and after he found out he was charging his crank case he was no longer worried. . . . .
View 12 RepliesI just had my turbo and the EBPV on the pedestal rebuilt. Now I need to put it back into the truck. What is the procedure, if any, to adjust the EBPV? I only use the truck to haul a 5th wheel RV and the performance chip closes the EBP valve when going down steep hills -( EXHAUST BRAKE)
View 6 RepliesAfter checking my fuel bowl today for contaminants, I put the lid back on and then noticed a leak from the rear at drain valve. I know, I already ordered the orings. It was doing one drip about every three seconds with the truck running. However, I turned the yellow thing a couple times and the leak stopped. Not leaking right now. Maybe it wasn't shut from previous owner.
Second question.....After stopping leak and after routing my fuel drain hose, I decided to give it a try. No luck. Nothing out or drain. Based on my first fuel filter change, it may be clogged up. So, do I run wire from the bottom up? Or do I run wire from top (bowl) down? Just so you know, sucked the bowl dry with a vacuum device before I reinstalled the filter.
Iv heard a few things about changing the valve body. I tow a trailer so was wondering on pros and cons of changing this. And also what brands are recommended.
View 5 Repliesdoing injectors and pulled the valve cover, and noticed its not as clean as i expected. in the oil on top of injectors i noticed its got some grit in it. this cant be good and not sure how this debris got in there as i always change oil and air filter regularly( unless previous owner neglected). is there a safe way to clean this? Is this a normal find for you guys that have done injectors?
View 1 RepliesThe bolt that holds the dipstick on the valve cover. i have tried for ever to get this thing off. soaked it , got a skinny wrench on the nut underneath but think it might be stripped (1/2 inch grinded out a little). going to try and get a set of skinny wrenches tomorrow , mine bent. tried vise grips on top of the bolt and put a box wrench on the nut , and gave it my all. The damn thing won't budge.
Also, any tips on the rest of the valve cover bolts. I had to remove some from inside the fender well but barely got to them. My question is not getting these out but getting them back in. And how the heck to you torque these things??? The bolt i mentioned above is creating problem, and I only have so much time
I have what might be a big problem, the main harness on top of the drivers side valve cover I can't get undone, the bolt holding it together is stripped or the nut who knows? wondering if there is any way to take it apart otherwise.
View 11 RepliesI have a late 99 7.3 that developed a knocking noise. I pulled the passenger's head and cylinder 5&7 have a spot where it looks like it came in contact with the valve. I'm not some master mechanic but am learning. What would be my next step to find why it hit the valve and to fix the problem?
View 14 RepliesI have this sensor unplugged. Is there a way to defeat this sensor so I don't pull this code?
View 3 RepliesIf the fuel relief valve is stuck open would it possibly throw a P1316 code?
View 4 RepliesI had the engine out of my truck (7.3 with e4od) to do manifolds. Anyway, I got it back in and started it up. Since there was air in th fuel lines it had to crank a couple seconds but started up. I looked and now fluid coming out, then it sat for a few minutes running and I took it for a drive. While sitting in the driveway it wa smoking a bit. But I thought it's from the oil I got in the exhaust while drilling two of the manifold bolts and soaking the bolts with ATF/acetone. After about half a mile I thought that maybe it's more oil then that would cause... So I went back. I looked and the inside of the exhaust is covered with oil, and the rear of the engine is also.
When it was out I capped all of the open ports so I could pressure wash the grease off. Also, I flipped the CCV so I could do the delete. During instal, I missed the cap on the CCV and it was not able to breath. I think that maybe it built up pressure and blew the valve cover gasket? It looks like it's coming from the right cover on the backside; I had not taken this cover off while the engine was out. How much pressure does it build? Is it possible that it could have blown the gasket out? I have done the oil cap trick to test blowby and it always passed the test. What it could be? For the leak on the engine and why it's in the exhaust?
I have a very small fuel leak in my 2001 F-250. I was going to just let it go until I needed to do other work (since I get 20mpg city and 25mpg highway), but I went to a "new" inspection guy, and he flunked me. So now I have to fix it. And for all I know, my mpg and fifteen other things will break when I try to fix this.
Today I spent 4 hours in the heat putting in two new o-rings on the water separator valve. But the truck still leaks fuel. Climbed up on top of motor while it was running and looked, but I don't see where the fuel is leaking out.
Online research suggests to me that the next most-likely culprit is a steel fuel line that wears through from vibration and chafing. Is that correct?
This truck is so eaten up with rust (came from salt belt) that I bought a LOT of fuel line stuff a year or so ago, so that when things started falling apart from rust, I would have the parts on hand.
Now I'm wondering whether I already have the part I'm likely to need.
So far, I have bought:
1. Dorman Fuel Supply and Return Lines
2. Riff Raff Diesel High Pressure Crossover (HPx)
3. Riff Raff Diesel Fuel Rail Crossover (FRx)
So my question is, am I likely to have something to replace the part that commonly leaks on these trucks due to vibration/wear/chafing ... or will I still need to buy another part?
I'm thinking that one of the two lines in item #1 above is the problem child...
2000 Camry XLE. Driver's el.window quits on way up, but will start again if I wait for one or more minutes before retrying. The longer I wait, the farther up it will go. Not fun at toll booths on rainy days. Started a few month ago when I forgot to close windows and the controls got rained on. Initially, a blast of WD40 seemed to cure the problem, but no longer. Took arm rest controls out, but couldn't see any obvious problems. Is this an aging motor problem? Do I have to get ripped off by dealership serv. dept., or can any reputable garage do it? I'm worried about taking the whole panel off myself. Don't have the tools to do so, and don't want to rip "leather."
View 6 RepliesI just changed the drain valve on the fuel filter bowl. All went well and no more leak, but now I am getting an "emission system" warning light.
After I replaced the valve, I filled the fuel bowl with diesel fuel. Was there any other priming that needed to be done (if any)? What the emission system warning light may mean?
2002 F250 7.3L 4x4.
I have an emissions test coming up. I have 3 P codes that I'd like to eliminate before then. I don't want to "fix" the issues they are telling me about. Just make the codes go away. I know why they're there I just need to get rid of them.
What I have coming up is:
P0475 Exhaust Pressure Circuit Valve (result of EBPV delete)
P0541 Intake air heater A circuit low (result of aih delete)
P0640 Intake air heater control circuit (also result of aih delete)
What resistors I'll need and where to put them in?
About a quarter inch before it gets all the way closed it reverses and opens back up. I can stop it with the switch anywhere in between while it is closing, but not while it is opening.
It is acting like the bounce-back feature (as described in the manual) is activating, but the bounce-back override feature (pull and hold the SLIDE switch within two seconds of a bounce-back event) does nothing.
There are no signs of restriction, as it opens and closes very smooth and quiet, but it did make a loud pop sound the last time I used it a couple month ago. I can count on one hand the number of times I've used it.
Last November I forgot to plug my truck in and it got down to 0, my girlfriend tried unsuccessfully to jump start it. When I got home I jumped it and got it running. I took it down to a heated shop to troubleshoot the glow plug circuit. I discovered it was not getting 12v to the glow plug relay. Also I started it and tried to back it up in the shop, when put in reverse it killed the engine, not lugged it down it was like you shut the switch off.
Also I discovered if you turn the lights on it kills the engine immediately. It will not crank with the lights on either. So far I have replaced the computer,ignition switch,batteries, and cam positioning sensor. Now comes the weird part!! I decided to get it running and pull the bulbs out of the back up lights I pulled the drivers bulb first then the passengers side bulb. When I pulled the passengers side bulb it killed the engine.
It is not my daily driver so it still sits in my shop. I have a hunch it's a ground issue but I've checked and cleaned up all the grounds I can find and it still has the problem.
I am still failing to appropriately diagnose the problem(s) with my '03 Ford E-350 7.3L Powerstroke. This van has only 69,000 miles on it. A week or two back (just a few days back in work time) it suddenly went from running perfectly smooth, clean and wonderful to this:
- Zero power. Putting the van in gear and flooring the engine causes lots more smoke not nearly any rev of the engine and just a crawl forward.
- Lots of smoke out the back exhaust, whitish. I cannot discern wether it smells like diesel or oil (because I'm ignorant here), but the smell is very strong.
- After warming up and idling ~ 15 min I check under the coolant cap and see no signs of bubbling or disruption (from opening the cap in the coolant tank).
- After warming up there are no warning lights visible on the dash, and I don't have a computer to read codes (if there are any to read).
- I replaced the turbo up-pipes which had a visible leak previously. This did not hurt the symptoms, though no more visual leaks under the dog house.
- I thought maybe I put gasoline instead of diesel in the truck, not so.
- To do the above test I had to use the fuel pump to get gas out the tank to test. I hijacked the fuel pump output and turned the car on a few times to get gas out to a tank. The pump seemed to work just fine.
This was all very sudden which is perplexing, and, in use, the van was previously an ambulette and in my few miles with it (maybe 200-300 only) use was extremely light for such an engine/van, just driving around doing errands. I am not sure if this is relevant (no one has suggested so, yet) but before all this happened I uninstalled the rear HVAC that came with the van when I bought it. The AC lines were sealed under the hood. The coolant line was returned at the doghouse (you can see this at the beginning of the video).
At the moment the van has no power to go anywhere. I have not yet checked the CPS or IPC sensors, and understand this might be the next route in standard troubleshooting?
2003 Ford E 350 7.3L Trouble - YouTube....