Stalling and/or won't start. Speedo jumps. MAP code. Bother? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Oldsmobile For model specific mechanical problems for all vehicles under the Oldsmobile badge.

Reply
 
 
 
Thread Tools Search this Thread
Old 08-08-2017, 03:33 PM   #11
Senior Member

Certified GM nut
 
Tech II's Avatar
 
Join Date: Feb 2014
Location: Worcester, Ma.
Posts: 1,974
Thanked 728 Times in 567 Posts
Tech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond reputeTech II has a reputation beyond repute
Default

You could have more than one problem here...

One thing I forgot to ask you to check, is pull the vac line from the F/P regulator......see if you have fuel in the vac line......that will cause a stall on a warm engine, and hard start on a hot engine....

If you have good spark, it'* not the crank sensor....

A rough start/stall, could cause the MAP code.....you say it was changed before? Are the two o-rings in place? there is a small black one around the PCV valve, and a large orange one, around the sensor, should be a spring in there too.....

One other thing......this could be a separate problem......if the car starts and immediately stalls/dies, observe the SECURITY LIGHT in the dash.....when you turn the key to on, it should come on for 3 seconds and go out....then when you turn it to crank position, it should stay off, and when the vehicle either starts and stalls, or starts and runs, it should be off....if it runs for two seconds and dies, and the security light is on, you have a problem with the PassKey system....
Tech II is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Speedometer jumps, cruise won't stay on blakeburcham Everything Electrical & Electronic 13 01-23-2010 11:01 PM
'88 Bonneville - Won't Start After Intermittent Stalling 88FreeLE 1987-1991 5 12-05-2007 09:05 PM
Car just won't start-and windows won't roll down??? Jeff Jacobs 1992-1999 2 05-07-2007 05:38 PM
LOSING TRANNY FLUID AND CAR JUMPS 88bonnsse 1987-1991 4 02-07-2007 04:11 PM
map o map harofreak00 Forum updates and suggestions 44 03-21-2005 02:04 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 09:49 AM.