My idle saga continues... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-15-2004, 11:29 PM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: Nov 2002
Location: Texarkana, Texas
Posts: 6,041
Thanks: 0
Thanked 0 Times in 0 Posts
Damemorder is on a distinguished road
Default My idle saga continues...

I think I figured out what was wrong, Someone with better knowledge than me confirm that this is right eh?

Anyway, The car would idle very roughly, Almost like a mild cam. I replaced plugs and wires, All new vacuum lines, LIM Gaskets, O2 Sensor and cleaned the LIM and UIM. Nothing seemed to help. So today I was checking my compression (I got 160'* on all) and I figured WTH I ought to just pull a valve cover and see if I can notice anything out of place. Popped off the rear one so it would serve a dual purpose and I could clean it. Three of my rockers were loose, Like I could move them side to side, up and down, the whole nine yards. I popped the exhaust rockers off so dad could use his little thingy to check my valve springs. My springs checked out okay against factory spec. Not like I really have that tight of a grip on that concept anyway... But when I put the rockers back I tightened them to factory spec and noticed they were very tight and I couldn't move them. I'm just going to guess that'* the way they should be. Now, When I started up the motor it idles almost perfectly now, Like it'* a serious improvement, You can't hear the car inside the house anymore, It'* really nice.

Now guys, I'm wondering if that was the problem and if I should retighten the ones I didn't tighten on the back bank and tighten them all on the front bank. What do you guys think?

Thanks in advance
Damemorder is offline   Reply With Quote
Old 10-15-2004, 11:37 PM   #2
Senior Member
True Car Nut
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

I don't have the answer to your question, but I do have another one:

Did you hear any "chatter" from the rockers being loose? I'm very interested in the answers you get on this. Wierd stuff.
randman1 is offline   Reply With Quote
Old 10-15-2004, 11:41 PM   #3
Senior Member
True Car Nut
Thread Starter
 
Join Date: Nov 2002
Location: Texarkana, Texas
Posts: 6,041
Thanks: 0
Thanked 0 Times in 0 Posts
Damemorder is on a distinguished road
Default

Just a very low pitched bump when the engine was winding down, And I could only hear it with a stethoscope. It seems to have decreased in both volume and frequency.
Damemorder is offline   Reply With Quote
Old 10-16-2004, 12:48 AM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

me: Re-torque ALL rockers. Front and rear.
me: Loosen, then re-torque, in 2 stages. specs in techinfo.
damemorder: specs in the book
damemorder: I was guessing I should do that, but are the bolt torque to yeild?
me: The rear is more likely to be loose, but check the front anyway.
damemorder: Should I clean the rockers whilt I have them out?
me: I don't think the rocker bolts are. If they say to torque a certain amount, then another certain number of degrees, they are.
me: No, don't bother cleaning them. No benefit.
me: Leave the glaze.
me: Rear is more likely to be loose from extreme temp cycling because of the firewall/rear exhaust.
me: You got that TTY, ?
me: Any time it calls for more angle after a certain torque, they're TTY.
me: How'* your valve cover seals?
damemorder: oh, okay, Good to know.
willwren is offline   Reply With Quote
Old 10-16-2004, 01:02 AM   #5
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Thanks: 0
Thanked 0 Times in 0 Posts
PontiacDad is on a distinguished road
Default

Dont forget lock-tite!! both factory and aftermarket rocker bolts come with lock-tite.
And you always check all the bolts if you find one loose, the rest are just as old.
PontiacDad is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
STILL have a high speed front end vibration!! Saga continues 1997_LeSabre 1992-1999 40 01-13-2011 08:32 AM
And the saga continues..detailed wheels and wheel wells SSEimatt93 Your Ride: GM Pictures & Videos 25 05-07-2006 10:28 PM
The Saga Continues SSEimatt93 Performance, Brainstorming & Tuning 6 03-03-2006 02:54 PM
The Saga Continues beckstyle General GM Chat 9 01-20-2005 06:29 PM
Car won't start, stall, die saga continues rnbraud 1992-1999 35 08-17-2004 12:35 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:46 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.