map sensor?? - 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 04-17-2010, 09:44 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
jason5983's Avatar
 
Join Date: Mar 2010
Location: kentucky
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
jason5983 is on a distinguished road
Default map sensor??

what are the symptoms of a bad map sensor my boost isint what it should be im getting like 8 psi WOT in 3rd and the higher rpm the lower boost i get seems like it fluxuates and stedaily drops also is shifting weird.. sometimes not at all ........ id appreciate sum input from the experts please
jason5983 is offline   Reply With Quote
Old 04-17-2010, 10:00 AM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Ya, a bad MAP could cause those problems. That sensor tells the PCM what the outside pressure is and helps set the AFR. I don't have a test for it in tech info, but you would need a vacuum source and then read the voltage from the sensor.
Danthurs is offline   Reply With Quote
Old 04-17-2010, 10:10 AM   #3
Member
Posts like a V-Tak
Thread Starter
 
jason5983's Avatar
 
Join Date: Mar 2010
Location: kentucky
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
jason5983 is on a distinguished road
Default

ok thanx man i replaced the LIM and cleaned the intake and the turbines on sc so im gonna get a new map sens this week theyre only 62 bucks....... and i have one more question my car has a rebuilt trans from salvage yard from previous owner it says 4t60e on bottom of pan is that right one for my car or is there only one that will fit on my car
jason5983 is offline   Reply With Quote
Old 04-17-2010, 10:16 AM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

That is the correct transmission for your car.

Check to make sure you didn't damage the vacuum line that goes to the MAP.
Danthurs is offline   Reply With Quote
Old 04-17-2010, 10:23 AM   #5
Member
Posts like a V-Tak
Thread Starter
 
jason5983's Avatar
 
Join Date: Mar 2010
Location: kentucky
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
jason5983 is on a distinguished road
Default

its not damaged just worn out i believe imma get new one soon imgonna replace all vac lines and map sensor at one time and see where that gets me thanx for the help man i appreciate it
jason5983 is offline   Reply With Quote
Old 04-17-2010, 10:28 AM   #6
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,643
Thanked 997 Times in 774 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Don't forget Dan, we have different "flavors" of 4T60-E'*. That donor trans could have come out of a minivan for all we know. Only way to find out if he has the "right" one for his particular car is to verify the model from the tag on the backside of the trans.
Mike is offline   Reply With Quote
Old 04-17-2010, 10:32 AM   #7
Member
Posts like a V-Tak
Thread Starter
 
jason5983's Avatar
 
Join Date: Mar 2010
Location: kentucky
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
jason5983 is on a distinguished road
Default

where is the tag at and i will check it and post because i dont really trust where this guy had it put in at theyre kinda shady they would b the type to put a minivan trans and say here you go didnt know till afterthe fact of purchase where he got it from:/
jason5983 is offline   Reply With Quote
Old 04-17-2010, 10:38 AM   #8
Member
Posts like a V-Tak
Thread Starter
 
jason5983's Avatar
 
Join Date: Mar 2010
Location: kentucky
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
jason5983 is on a distinguished road
Default

she doesnt go in to overdrive at all nor will it down shift ever every now and then when she gets up to 220 degrees and the fans come on some thime it will go into OD but runs like its clogged up or something and i have a gutted cat
jason5983 is offline   Reply With Quote
Old 04-17-2010, 10:42 AM   #9
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,643
Thanked 997 Times in 774 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

You would have to raise the front of the car off the ground, ie ramps or jacks. Crawl underneath and look up between the firewall and the trans. You will see a metal tag. Look for a number that says something like 4BXW. It always starts with a number and letters. It could start with a 7 also.
Mike is offline   Reply With Quote
Old 04-17-2010, 10:48 AM   #10
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

How does the fluid look? If it'* dark the filter might be clogged.
Danthurs is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
map o map harofreak00 Forum updates and suggestions 44 03-21-2005 03:04 AM
MAP sensor sc3800fiero 1992-1999 3 03-15-2004 01:09 AM
MAP Sensor Dylansdad 1992-1999 7 05-19-2003 11:32 AM
Can't Find MAP Sensor brvs 1987-1991 17 04-22-2003 12:40 AM
MAP sensor Dylansdad 1992-1999 1 03-04-2003 02:38 PM


Tags
tranny problem???????

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 08:17 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.