rough running ssei - 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 07-21-2006, 03:55 PM   #1
Junior Member
Thread Starter
 
Join Date: May 2006
Location: Salt Lake City, UT
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi ya is on a distinguished road
Default rough running ssei

k well im gettin kind of frustrated. Here is my story. :(

aprox 500 miles ago had a engine light on and figured it needed a tune up.
Replaced spark plugs,wires,pcv valve,oxygen sesnor,fuel filter.
i fugured the oxygen sensor was why the light was on.

didnt seem to run anybetter, and didnt turn the light off.

so 3 weeks later it starts running like pure crap.
starts up fine. Then the idle fluxuates a good 900rpm. Runs realy rough. Has no power. knocks in the top of the motor. If the car suposidly had 225 hp, it runs like it has 165. (you get the idea)

the more i drive it the better it runs, but still has major issues.

I take it to tunex last week. They run the scanner and it comes up with a 341 i belive. Its the intermittant cam sensor code.

This is where it gets weird. They replace it and it runs no different. they pull the codes again and they get the 341 also along with a 705 PRDNL (nutral safety switch?)
And he said they had a code pop up for a split second (quad driver) but it never came up again.

They were kinda perplexed and recomended me to the dealer to diognose it.
Im scared! i dont wana deal with those money hogs!

Please help. i would greatfully appretiate the help.
SSEi ya is offline   Reply With Quote
Old 07-21-2006, 04:00 PM   #2
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

The cam code can likely be caused by the magnet mounted to the cam gear. It can pop out of place. Mine did and it ran like crap. It can be fixed with JB weld and some patience, or your gonna have to pull the timing cover, chain, gear...

http://www.bonnevilleclub.com/forum/...ght=cam+sensor

The knocking up top could be the supercharger coupler. Take that belt off and rotate the SC pulley by hand. Any play/slop?
J Wikoff is offline   Reply With Quote
Old 07-21-2006, 04:12 PM   #3
Junior Member
Thread Starter
 
Join Date: May 2006
Location: Salt Lake City, UT
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi ya is on a distinguished road
Default

There is no slop or play in the SC. was rebuilt 5 thousad ago . The knockin sounds more like valves or lifters, but goes away the warmer the engine is.
Frankly if it was my guess, it feels like my timing is retarded. Or advanced a bit.

Do pcm'* go bad very often?

Also Tunex said the magnet was fine .
SSEi ya is offline   Reply With Quote
Old 07-22-2006, 12:38 AM   #4
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

If it goes away, it sounds like a sticky lifter. I don't know where to go with the rest.
J Wikoff is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
rough running 1994 ssei 1337ssei 1992-1999 20 12-09-2006 11:35 PM
STILL***running / ideling rough......less power......93 ssei mikey 1992-1999 28 07-07-2006 08:55 AM
'94 Bonneville SSEi - rough running Snowflake 1992-1999 6 01-10-2005 12:36 PM
running rough mrs.crzydmnd Performance, Brainstorming & Tuning 0 02-01-2004 09:34 PM
rough running, lack of power vital49 1992-1999 18 04-01-2003 05:31 PM


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 06:13 AM.


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.