SPONSORED LINKS

Rough idle check engine light?

Tiny
MATTSTORMS42
  • MEMBER
  • 2008 DODGE CARAVAN
  • 3.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 377,292 MILES
Van has had the following new parts: Head gasket, cylinder heads resurfaced, plugs, coils, wires, EGR, injectors, water pump, serpentine belt, alternator/battery, and fuel pump. All fluids are topped off and no signs of fluids mixing i.E oil in coolant.

Van has rough idle, slight exhaust smoke, not dense or heavy in color.
Also, slight smoke from the engine compartment. I have 2 DTC'S see photos.
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Thursday, October 10th, 2024 AT 6:02 PM

7 Replies

Tiny
CANNON1349
  • MECHANIC
  • 670 POSTS
Hello,

Sounds like an exhaust component was not tightened correctly, or there is a crack somewhere on that component on Bank 1. Were new manifold gaskets installed? EGR lines, okay? Catalytic converter gaskets, EGR gaskets, etc. Etc.

Do you have a shop vac? Something I like to do is use a shop vac to blow into the tail pipe while spraying the exhaust components with soapy water, the leak will prevent itself. An exhaust leak in front of the O2 sensor will be like a huge vacuum leak, and as it will increase the oxygen readings on that bank.

Let us know,
William
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, October 10th, 2024 AT 6:26 PM
Tiny
MATTSTORMS42
  • MEMBER
  • 20 POSTS
I replaced the intake/exhaust manifold and new EGR valve/tube. The only major leak I found was gasket after rear exhaust manifold before catalytic converter using shop vac/soapy water. See pic.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2024 AT 8:59 AM
Tiny
CANNON1349
  • MECHANIC
  • 670 POSTS
Hello,

Did you mean you replaced the manifolds or the manifold gaskets? In any case make sure to spray all the new components as well. If the engine overheated, it is possible the head warped on the exhaust side causing uneven fitment. However, if the leak you are showing here is before the oxygen sensor, which will throw things off on that bank. Regardless I would grab a gasket and recheck.

William
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2024 AT 9:04 AM
Tiny
MATTSTORMS42
  • MEMBER
  • 20 POSTS
That gasket was replaced. Both heads were refurbished, and new head, intake and exhaust manifold gaskets were put in.
Was this
answer
helpful?
Yes
No
+1
Friday, October 11th, 2024 AT 1:17 PM
Tiny
CANNON1349
  • MECHANIC
  • 670 POSTS
Sounds good. But don't forget to spray them too. Many times, I've had bad parts straight out of the box. Let's fix the current leak and go from there. Please let us know!

William
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Friday, October 11th, 2024 AT 3:03 PM
Tiny
MATTSTORMS42
  • MEMBER
  • 20 POSTS
Will do. Thank you
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2024 AT 4:47 PM
Tiny
CANNON1349
  • MECHANIC
  • 670 POSTS
No problem and thank you for using 2Carpros. Com.

William
Was this
answer
helpful?
Yes
No
+1
Friday, October 11th, 2024 AT 4:55 PM

Please login or register to post a reply.

Related Check Engine Light Content

Code Read Retrieval/Clear - Dodge Stratus
VIDEO
Code Read Retrieval/Clear - Dodge Stratus
Instructional repair video
Check Engine Light
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
VIEW MORE

Sponsored links