SPONSORED LINKS

Hard Cold Start runs great after warming up?

Tiny
HENRYEARL
  • MEMBER
  • 1993 MERCEDES BENZ 190E
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
1993, 190e, 2.6 Mercedes runs great after warming up. Hard cold starts with a 70 degree day, restart 15 times with short idle times, steady increasing idle time between starts. When engine temperature rises it runs great all day. Note: I have replaced the (3)three sensors mounted on top rear of head.

Henryearl
SPONSORED LINKS
Sunday, December 16th, 2007 AT 11:00 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the coolant temperature sensor and cold statrt valve check and idle speed air valve.
Was this
answer
helpful?
Yes
No
Sunday, December 16th, 2007 AT 11:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I agree with RASMATAZ, it sounds like the cold start valve is not working or needs to be cleaned here is a guide to help and I have included the location of the cold start valve in the images below so you can check it out.

https://www.2carpros.com/articles/engine-cranks-excessively-before-starting

Check out the images (below). Please let us know what happens.
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, December 2nd, 2024 AT 2:06 PM

Please login or register to post a reply.

Related Engine Runs Hot Content

VIEW MORE

Sponsored links