Engine starts cutting out at 50 mph. Cleaned injectors, replaced mas, now running worse. ideas?
Jan 9, 2019 at 6:52 PM
Running rough at high gear 50 mph
1999 FORD E-SERIES VAN
SAMANTHA DELIMA
- MEMBER
- 1 POST
Advertisement
JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi and thanks for using 2CarPros.
If the check engine light is staying on when the engine is running, I would first scan the computer for diagnostic trouble codes. Here is a quick video showing how it is done:
https://youtu.be/YV3TRZwer8k
Next, I would recommend confirming the the fuel pump pressure is within the manufacturer's specs. Here is a link that shows in general how to check it:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
I attached the manufacturer's specifications for you.
Start with this and let me know what you find.
Joe
If the check engine light is staying on when the engine is running, I would first scan the computer for diagnostic trouble codes. Here is a quick video showing how it is done:
https://youtu.be/YV3TRZwer8k
Next, I would recommend confirming the the fuel pump pressure is within the manufacturer's specs. Here is a link that shows in general how to check it:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
I attached the manufacturer's specifications for you.
Start with this and let me know what you find.
Joe
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Jan 10, 2019 at 6:33 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.