Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

  • RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE

    You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

  • 0
Sign in to follow this  
ratmn218

2002 chev 6.0

Question

ratmn218

when cold idles rough and then revs to about 3000 rpms . replaced fuel filter and fuel pressure regulater?on fuel rail, with vacume hose attatched to it.still same problem what do i try next? no engine light service soon lights are on.

Share this post


Link to post
Share on other sites

4 answers to this question

Recommended Posts

  • 0
PierBridge

Many possiblitys.

I would get it on a scanner first off and check air intake and coolant temp variances they should be within 10 degrees.

Possible vacume leak?

Hopefully some of the smarter guys will chime in!

Share this post


Link to post
Share on other sites
  • 0
ratmn218

checked pcv valve, looks to be empty. no rattler? i thought to test them they should rattle? can see right through it?after warm up seems to run great.

Share this post


Link to post
Share on other sites
  • 0
Jeremy airjer W

The PCV valve should be on the drivers side on the back of the valve cover.

As far as the high idle I'm not sure. Typically a vacuum leak (plenum gaskets) will flag a check engine light with codes for both banks lean. Usually there will also be a ruff idle symptom when cold.

Share this post


Link to post
Share on other sites
  • 0
UMDSportsman

my mom's truck does the same thing on the cold days. I don't know exactly how high it idles, but it does it for a little while then it stops. she has a 2000 silverado, with a V8, pretty sure the 5.3. They are trying to find out what is wrong, but nothing yet.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this