Does that Explain the Rough idle on my car?
Asked by farrell2210 Mar 10, 2013 at 01:03 AM about the Nissan 300ZX
Question type: Maintenance & Repair
I just Bought this Car and I'm comparing it to my friends car and i believe i am missing that hose
piece. what does that do? Pls. anyone help me!
23 Answers
migration_judge_roy answered 11 years ago
I believe the piece you are talking about is the PCV or positive crankcase ventillator tube, what allows crankcase air to go on a one way street up into the intake----if it's missing, you'll be suckin' air and puffin out with oil smoke-
farrell2210 answered 11 years ago
Omg You Guy are a BIG HELP for Beginners like me! God Bless you GUYS!!!! Nissan 300 RULES!! haha
Whoa...I certainly did not mean to cause confusion, I was only re~affirming Bob. he has it. What confuses you? I would be happy to help set things straight..
farrell2210 answered 11 years ago
I think i don't have either of these too. hmmmm. Im going to check it now. crap... it's cold outside :-s
You must have them, in on variety or another. If the hose for the PCV valve is missing, not anything hooked up to the vacuum source you will have a massive vacuum leak, very bad, you would be able to hear it, and the idle will be very rough if it idles at all. What is that picture of?
I don't know what Bob or David are seeing but in the picture it looks like the arrow is pointing to a bushing on the throttle linkage.
Yep TS I enlarged it and you are absolutely correct, it is.
Bow on that bottom picture, it's hard to tell..but it looks like that is not a vacuum source, but being right behind the water pump it may be a heater hose. Does your heater work?
farrell2210 answered 11 years ago
I Never Been So Thankful in ALL MY LIFE working on a Car Project! Thank You sooo much sir! Thanks to Bob nueske and tenspeed too! I hope the parts i'll be needing wont cost me much :( Happy Sunday God bless you all!
farrell2210 answered 11 years ago
hmmmm heater works. but i'm not really sure.. For sure the guy that i bought the car from said AC isn't working..
farrell2210 answered 11 years ago
I wish the Site will allow us to post 10 sec videos :(
The PCV valve itself is about $20, and hoses not real expensive
I can see it in the second picture. The arrows are pointing at the gold towers not the throttle linkage. It does look like it's missing a pair of hoses from the cam cover to the intake. Probably positive crank case vents.
farrell2210 answered 11 years ago
I'm Going to Check My local Auto Shop for it.
Good idea farrell. Now this is from another parts house.. A1 CARDONE MASS AIR FLOW SENSOR, REMANUFACTURED -- A high quality, direct fit OE replacement mass air flow sensor; With A1 Cardone's 1-year or 18,000-mile warranty.
If you want to post a video, put it on YouTube and then give us the link
We do our best effort farrell, all of us do. Thanks for the acknowledgment .but that MAF image was meant for another question about a Venture, I was on the wrong place