Know what the vacuum should be at idle ? The scanner says around 18.5"
I'll take off the throttle body and clean it this weekend..
Victor
Date: Mon, 20 Oct 2003 15:30:02 -0400
From: "Rick Barnes" <barnesrv@comcast.net>
Subject: DML: RE: rough idle question
Victor, I wonder if you have a vacuum leak.
Rascal
- -----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of
victor.williams@byers.com
Sent: Monday, October 20, 2003 6:39 PM
To: dml@dakota-truck.net
Subject: DML: rough idle question
I've been trying to get my 360 to idle better with no luck.
Checked wires,cap,plugs,got injectors cleaned, new air filter,cleaned PVC
valve,cleaned IAC which is only 3-4 months old, replaced TPS, checked
compression - 165 on 7 cyl and 155 on cyl 7. Nothing has helped yet.
No error codes. When I hook up a scanner the timing in the total advance
seems to jump from 11 to 20 and is consistantly changing. Is that good ?
The dash tachometer shows it's idling 2-400 rpm but scanner shows 574 rpms.
Runs fine off idle. Would a bad timing chain cause this ?
What controls timing at idle and what else can I look for ?
Don't really know how many miles are on the 360, I got it used 20k miles
ago.
Victor Williams
Marietta Ga
1995 CC Sport 2wd,5.9l,5sp,3.55LSD,MP sp intake,Flowkooler,K&N
dropin,Jardine catback,Flowmaster 70,CarSound Cat,Jacobs ign,MSD 8mm
wires,Tow pkg,207rwhp,285rwtq
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