Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-08-2003, 10:20 PM
Plantman's Avatar
Registered User
 
Join Date: Jan 2003
Location: Miami
Posts: 2,133
Any sugggestions for GM problem???

I am having a heck of a time, along with my mechanic, in trying to fix my sisters 1991 Old Cutlass Sierra.

Do you all have any other forums I might call on?

For what it's worth, the car will not start. It had no spark so we changed the ignition module and the 3 coils that go along with it. 2 per each cylinder.

It started and ran fine for about a day, then back to square one. Checked for faulty grounding and found the harness that goes form the crank sensor to the module witha short in it. Changed the harness and the sensor. Nothing.

Changed the cpu and zilch. No trouble codes have appeared either.

My sister is driving me crazy using me as a taxi, but she's had it since new and want's to fix her up. Was running perfect, with 155,000 miles prior to this problem.

Suggestions? Ideas?

Thanks

Last edited by Plantman; 09-09-2003 at 01:18 AM.
Reply With Quote
  #2  
Old 09-09-2003, 01:18 AM
Plantman's Avatar
Registered User
 
Join Date: Jan 2003
Location: Miami
Posts: 2,133
Help........
Reply With Quote
  #3  
Old 09-09-2003, 07:42 AM
brandoncrone
Guest
 
Posts: n/a
What engine does it have??
Reply With Quote
  #4  
Old 09-09-2003, 08:34 AM
Plantman's Avatar
Registered User
 
Join Date: Jan 2003
Location: Miami
Posts: 2,133
I believe it's a 4.3 ltr 6 cyl. Not sure whether 4.0 or 4.3. It is a 6cyl though.
Reply With Quote
  #5  
Old 09-09-2003, 10:59 AM
DR.DIESEL's Avatar
Senior Member
 
Join Date: Mar 2003
Location: Puget Sound, Washington St.
Posts: 522
Does it have an el-cheapo aftermarket alarm with ign defeat?
How about the ign switch itself, Is it powering up the EFI computer as needed?
You may want to pick up a manual with wiring diagrams and
verify power to components like EFI ecu, coils, ign module, ect....
Just a couple of ideas now that the parts cannon is out of ammo.

Good luck and let us know.
Dr.D
Reply With Quote
  #6  
Old 09-09-2003, 11:18 AM
Plantman's Avatar
Registered User
 
Join Date: Jan 2003
Location: Miami
Posts: 2,133
Thanks. Will check the alarm as I do remember it having one............maybe.
Reply With Quote
  #7  
Old 09-09-2003, 11:29 AM
DR.DIESEL's Avatar
Senior Member
 
Join Date: Mar 2003
Location: Puget Sound, Washington St.
Posts: 522
If it does, make sure it isn't interuppting power to the ign system.
As most alarms are wired in-line to do this.
Dr.D
Reply With Quote
  #8  
Old 09-09-2003, 09:24 PM
Plantman's Avatar
Registered User
 
Join Date: Jan 2003
Location: Miami
Posts: 2,133
IWe happened to put it on the lift today after it drove around sluggishly for about 5 minutes.

I stand 6'3" and accidentally bumped my head to the rear of the catalytic convertor and it was slightly warm, not scalding hot, like the front of the exhaust pipe. ANyway, we removed it and lo and behold, it was clogged. Big time.

Replaced it with a straight pipe and changed the plugs. As of now, it is running pretty well, although the idle is a little low and it is stalling from time to time.

Will give it a nice hard ride tommorow.
Reply With Quote
  #9  
Old 09-10-2003, 12:43 PM
Registered User
 
Join Date: Jun 2001
Location: California
Posts: 324
The no-start condition can be caused by the "pick up coil" in the distributor. Cheap part, but the distributor has to come out and come apart to change it. The pick up coil is a weak link in GM distributors of that vintage. I replaced my entire distributor (91 Pontiac) with a MSD Pro Billet unit and the problem was completely solved.
__________________
D.H.

04 ML500
02 E430

Experience is something you don't get until just after you need it.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 02:47 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page