SES light w/ code help

[sgtmac]

So I replaced the PCV and gas cap, SES still on. I can't hear any obvious sucking sounds under the hood, although, when I blip the throttle by hand I get a massive sucking sound, then she rev's up.

So what should I check next? I was hoping for an "ah-ha" but nothing yet.

Idle seems fine, at least no worse than when I got it 6 weeks ago. Ditto the gas mileage. Acceleration may be off, but if it is, it's marginal.

Thanks

 

[xanatost]

Sounds like a vacuume leak. Check all rubber lines and connections. Just pick one and follow

 

[sgtmac]

I seem to remember being able to spray carb cleaner around suspect areas to find a leak on my old cars. I assume that trick won't work on fuel injection?

---------- Post added at 05:32 PM ---------- Previous post was at 04:02 PM ----------

Having a hard time tracing the lines, I can't tell but it sounds like the there may be a leak on the top and back of the motor. Does that sound like anything to anyone?

So click on the "pic" and it will open the video in a new window on Photobucket. The sound sucks, sounds nothing like my motor, way more wind noise but maybe it will help?



Thanks

 

[_Dylan_]

yes you can still do the carb cleaner trick to find a vacuum leak

 

[sgtmac]

Does anyone have a vacuum line schematic? I could also you some ideas where to look next, usual suspects etc.

Thanks

 

[SunlitComet]

need the year.

 

[sgtmac]

It's a 98 w/ 5.7 and 4WD.

Thanks

 

[SunlitComet]

here:

 

[sgtmac]

Thank you sir!

Can you tell me what the name of this part is? I can't seem to figure it out.


Is it a dealer only part?

Thanks

 

[SunlitComet]

that big round one smack in the middle with the "ac" or "12" on it is the egr valve. something wrong with it?