Does that Explain the Rough idle on my car?

70

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

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-

2 people found this helpful.
Best Answer Mark helpful
70

Omg You Guy are a BIG HELP for Beginners like me! God Bless you GUYS!!!! Nissan 300 RULES!! haha

1 people found this helpful.

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..

70

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?

177,695

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.

1 people found this helpful.

Yep TS I enlarged it and you are absolutely correct, it is.

1 people found this helpful.

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?

70

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!

1 people found this helpful.
70

hmmmm heater works. but i'm not really sure.. For sure the guy that i bought the car from said AC isn't working..

1 people found this helpful.

The PCV valve itself is about $20, and hoses not real expensive

1 people found this helpful.
177,695

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.

2 people found this helpful.

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.

2 people found this helpful.

If you want to post a video, put it on YouTube and then give us the link

1 people found this helpful.

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

2 people found this helpful.

Your Answer:

300ZX

Looking for a Used 300ZX in your area?

CarGurus has 1 nationwide 300ZX listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    dandyoun
    Reputation
    410
  • #2
    Jamie Staples
    Reputation
    400
  • #3
    macevanscb
    Reputation
    350
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Nissan 370Z
7 Great Deals out of 51 listings starting at $14,990
Used Nissan 350Z
10 listings starting at $10,995
Used Nissan Z
147 listings starting at $45,192
Used Toyota Supra
73 listings starting at $49,777
Used Nissan GT-R
10 listings starting at $89,995
Used Chevrolet Camaro
20 Great Deals out of 281 listings starting at $7,995
Used Ford Mustang
58 Great Deals out of 1,366 listings starting at $4,995
Used Chevrolet Corvette
27 Great Deals out of 1,082 listings starting at $15,000
Used BMW 3 Series
65 Great Deals out of 1,229 listings starting at $2,500
Used Mitsubishi Lancer Evolution
10 listings starting at $14,995
Used Ford F-150
309 Great Deals out of 13,933 listings starting at $1,712
Used Honda Civic
195 Great Deals out of 4,054 listings starting at $440

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.