http://www.wellsve.com/ Diagnose and repair GM 3.1 with a P0401 code “The information presented in this program is based on a specific diagnostic case and mi…
GM P0401 EGR Troubleshooting by WELLS Engine Management
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You might be surprised! There are many manufacturers that are going to introduce diesel vehicles in the United States. In Europe there are more diesels than gas or (Petrol). It will be very interesting to see how this develops.
Mark Hicks
Wells Vehicle Electronics
Diesel is not good for everyone because diesel is shit even cheap! Pertol won!
replaced top and bottom and growling is back so im going to do the tranny mount as well . SOOOOOO tired of this dam noise . i did get the struts and tie rod ends done .
Hey. I have a problem. I have a 2000 Jaguar s-type v8. The engine starts when I step on the gear pannel and the engine shuts off or when I start and let the engine run, it keeps running.When I try to step on the gear, this highest RPM it would go to is 3. When I try to drive it, it wont go. If anyone can help, please do. Thank You.
Yes it could.
Mark Hicks
Wells Vehicle Electronics
hi please could you tell me if EGR on diesel engines has somethings to do with lack of power like citroen xsara picasso as it hesitate on acceleration . many thanks
1. Revise la manguera de drenaje de goma de la válvula de ventilación bote por estar bloqueado.
2. Compruebe si la válvula de ventilación EVAP está atascado cerrado.
3. Busque señales de que el agua en el recipiente EVAP.
4. Compruebe el control de EVAP sistema sensor de presión.
Consejos técnicos:
Este código se indica que la válvula de ventilación EVAP está atascada en posición cerrada.
Gracias,
Mark Hicks
Wells Vehicle Electronics
Felicidades por sus videos muy practicos , gracias, podrian? comentar el codigo P0448 indica sistema de control de las emisiones por evaporizacion, mamndo de ventilacion ; corto circuito.. es de una Nissan Pathfinder 2007.. gracias..
it worked, although it stayed on for about 45 miles it is now off. The port was clogged big time just as the video showed, thanks a million for posting the video.
If you have repaired the problem correctly, on most vehicles the light will go out after two complete trips. A trip is a start up from cold and a steady drive over 40 for at least 5 minutes.
Mark Hicks
Wells Vehicle Electronics
Will following these steps automatically shut the service engine light off? Or do you have to get a parts place to reset it with the code checker?
Gracias, vamos a seguir para hacer el vídeo! Sus amables palabras que significan mucho para nosotros!
Mark Hicks
Wells Vehicle Electronics
exelentes los videos saludos sigan haciendo mas para tener infomacion gracias
possibly the brake light switch, or a bad ground.
If you tell me the year, Make, Model and engine size I might be able help you.
Mark Hicks
Wells Vehicle Electronics
can anyone tell me whats causing my emergancy flasher relay to keep clicking except when i apply the brake pedal it stops ?
Cool beans. Let me know how it goes. Or any questions bout the car cause I’ve practically done everything on this Beretta. I’m even rebuilding the trans. Not too difficult. Just pieces u gotta replace
k ill look at it
Oh! I remember that video. I used it too 2change that mount when I 1st got my car. As I said, there’s another one directly below it. There are 2 motor mounts & 1 transmission 2body mount (on the driver side. Bolts can be seen in the wheel well)
@PatriotRadioMilitia there are 2motor mounts. one on the top (passenger side) & one down under the belt. its shaped like a dog bone.
watch?v=zsTjQm4-Dsk @ 6:20 this is the mount i replaced
you lost me , i replaced the upper mount block and its much better but i still hear a bit of grind ( from engine tork) i have not replace any other mount parts ( lowers)
How old is the dog bone by the wheel?
my reta is runnin sweet , only thing seems to be a issue is the passenger side motor mount ,brand new but still get a bit of a growl/grind sound when i step on it .
whew! ok then. I stay on top of my engine. Anything odd & I’m on it. Hope ur engine is @tip top now
within the next couple of days , if you havent seen it then you probably flushed more than i did , i did do the egr cleaning as well, was nasty , only one easy sencor if you ever have to do i t,
I havent had any problems since putting in that seafoam. How long afterward did ur check engine light come on?
check engine light ran code said Oxy censor , a bad sensor will make it run shity , i took down my other cars top end apart and cleaned by hand , more therough and no gunk downstream .
uh oh. I just put seafoam in last week. What was the symptom that ur censor was bad?
Thank you for the update!
Mark Hicks
Wells Vehicle Electronics
my censor went bad from using seafoam replaced oxy censore . all good
Good Point Thanks for the input!
Mark Hicks
Wells Vehicle Electronics
Use throttle body cleaner on the throttle body, carb cleaner can acccully remove a coating on the butterfly in the body and cause corrosion, ive seen it only once but it is possable and will cause idle issue’s, and set an IAC code.
Thank you for the great comment and letting everyone know it really does work.
Mark Hicks
Wells Vehicle Electronics
I had this same problem & have the same car. My Beretta went so far as to stall out. I just followed the steps 2this video & no more engine light. Problem solved
We used the opportunity to talk about the advantages of our EGR valves. We don’t really have customers, it cost the owner nothing. But, with almost 108,000 miles on the vehicle, if I were still working in my garage, I would have recommended replacing the valve. When a customer experiences the same code two weeks after you repaired the problem it appears to them you have done nothing.
Mark Hicks
Wells Vehicle Electronics
We verified that the existing EGR valve was functioning, why sell the customer an unnecessary part?
Thank you for the kind words I can’t think of a better compliment than yours! Mark Hicks Wells Vehicle Electronics
I commented on this page bout a year ago. Since finding this video, I’ve help fix 3 other vehicles with this same problem. It’s so simple. Thanx again, Mr. Hicks. Very well done
The aluminum we are poking into is very think and we felt scratching it would not be an issue. This was the first video we produced. All of our videos are done from start to finish by techs. Learning how to produce videos is learning another profession. We have gotten better. Yes all EGRs with this pin out are wired the same. We did check the intake on this vehicle and it was not leaking.
Great questions and comments, please let me know if you have any more,
Mark Hicks
Wells Vehicle Electronic