RE: HELP! Rough Idle, Vac hose???

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RE: HELP! Rough Idle, Vac hose???

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Land Rover Forum >> Vehicle Line Up >> Discovery >> RE: HELP! Rough Idle, Vac hose???

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RE: HELP! Rough Idle, Vac hose??? - 3/6/2008 12:46:53 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

I believe the cracked hose was the pcv hose? would this cause my problem i ducted taped back up until i order a new one

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Post #: 21

RE: HELP! Rough Idle, Vac hose??? - 3/6/2008 1:23:11 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

ok mike i will give you a call in about an hour or when i get home thanks for the help thus far

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Post #: 22

RE: HELP! Rough Idle, Vac hose??? - 3/7/2008 3:50:33 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

ok now my disco is running rough when i drive it and does not have much power i took the plugs out and this is what they look like i put them in only 50 miles ago. the tip is white and the rest is dark they were NOT wet when i pulled them. let me know what you guys think.

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Post #: 23

RE: HELP! Rough Idle, Vac hose??? - 3/7/2008 4:06:43 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

does the white mean i am running lean? or am i running rich? thanks

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Post #: 24

RE: HELP! Rough Idle, Vac hose??? - 3/7/2008 4:37:07 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

Hey DiscoMike is it alright if i give you a call right now?

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Post #: 25

RE: HELP! Rough Idle, Vac hose??? - 3/8/2008 6:01:33 AM

Spike555

Posts: 2791
Joined: 6/22/2007
From: Grand Rapids MI
Status: online

Yes a vacum leak will cause rough idle, take your PCV hose down to NAPA and buy a couple of hose clamps and have them cut you a foot of vacum or gas hose, go home and cut it to length making sure that you dont kink it, also replace the hose coming from the valve cover to the throttle body.
Then clamp them so they make a tight seal. I did the same thing on my '97.
The idle control valve being bad will NOT cause a rough idle, it just wont idle when that goes bad.
Go to NAPA, spend the $5 and fix your trk.
If you slip the AutoZone guy reading your codes $10 he will clear them.

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If it ain''''''''''''''''''''''''''''''''t leakin'''''''''''''''''''''''''''''''' it must be empty!
Yes, one man can change the world.
If the citizens are affraid then they are easier to control.

The "Storm Trooper", ''''''''97 in Alpine White.

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Post #: 26

RE: HELP! Rough Idle, Vac hose??? - 3/8/2008 8:48:08 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

Alright thanks i will go to NAPA and do that. Thanks again i will keep you guys updated. Any know what the color of the spark plugs mean? Thanks

< Message edited by JPC97DiscoSD -- 3/8/2008 8:49:12 PM >

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Post #: 27

RE: HELP! Rough Idle, Vac hose??? - 3/9/2008 6:29:15 AM

jkid

Posts: 529
Joined: 9/26/2007
Status: online

A lot of white, blistering means you are running too hot, yours look a little too white. Usually its from using the wrong plug, bad timing, sticking valves, poor cooling, etc... In your case it sounds like the vacuum leak might causing it too run too lean and therefore hot. So, change your plugs while you're at it.

Edit: Get your codes cleared and see if any others come up later. Bad O2 sensors, air flow sensors (any air/fuel metering) and such could make it run lean too but those would give a code.

< Message edited by jkid -- 3/9/2008 7:01:45 AM >

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Post #: 28

RE: HELP! Rough Idle, Vac hose??? - 3/10/2008 4:35:13 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

Ok i brought a coder reader today and here are the codes:
P1193
P0300
P0308
P0304
P1316
P1314

I cleared the codes it still is doing the same thing i drove it around my block and let it idle for 3min since i cleared them and no CEL lights came on.

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Post #: 29

RE: HELP! Rough Idle, Vac hose??? - 3/11/2008 2:43:54 PM

JPC97DiscoSD

Posts: 41
Joined: 2/29/2008
Status: offline

Should i drive the car more until the codes pop up again or will it damage my disco more?

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Post #: 30