low pump pressure ?

low pump pressure ?

Postby Safari GFX [OP] » March 22nd 2009, 6:52pm

my 2000 Safari awd when cold,I shift to reverse it does not move,it after awhile it will roll out of the garage,it slips going forward ,then after some time it will work better. Shifting seems slow ,it does not slip all the time,no codes for the transmission.
The fluid and filter was changed before my trip to New York last summer,the level is not low and there is only less than 6000 miles on this fluid.If it was worn clutches were worn ,would it slip all the time. I am look at replacing the transmission,could a new transmission pump fix the problem?
2000 Safari,awd,limited slip rear end, 3.73 ,tow package,front and rear heat/air,GFX ground effects
Original Poster [OP]
User avatar
Safari GFX
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: Safari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full years
Posts: 21
Topics: 9
Joined: February 2008
Gender: Male
Alias (AKA):

  • Similar topics
    Replies
    Views
    Author
  • Fresh 4l60e low line pressure no 2nd or 4th
    by Bikley » January 17th 2021, 10:40am in Automatic
    14 Replies
    288 Views
    Last post by Bikley View the latest post
    February 17th 2021, 2:42am
  • Low rumble when starting from stop...no vibration
    by gordo999 » November 12th 2020, 2:38am in Automatic
    3 Replies
    126 Views
    Last post by gordo999 View the latest post
    November 13th 2020, 2:16am
  •  
    9
    38
    Last post by AstroSafari.com View the latest post
    March 1st 2021, 1:11am

Re: low pump pressure ?

Postby Matrixx » March 23rd 2009, 1:39am

Hi Safari GFX

Is the transmission fluid being checked with the motor warmed up and running with the transmission in park? It sure sounds low to me. If not, then it could be the wrong oil added, Torque Converter, Transmission oil pump when it is affecting every single gear like that. I wouldn't make a decision yet until you found out what is wrong with it first.

I'm sure others will chime in if they can. Please keep us updated, Thanks.:)
96-GMC Safari - Rwd - Original Transmission - Exhaust - Air Cared - 3.73 Limited Slip Rear End - Motor Replaced - 91 octane (Chevron) for the last 14 years - MFI Upgrade - 640,000 Kilometers.
User avatar
Matrixx
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 6 Cylinders (L3)
Firing on 6 Cylinders (L3)
Years of Membership: Matrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full years
Posts: 2640
Topics: 14
Joined: January 2008
Alias (AKA):

Re: low pump pressure ?

Postby astro355 » March 23rd 2009, 5:30pm

Matrixx wrote:Hi Safari GFX

Is the transmission fluid being checked with the motor warmed up and running with the transmission in park? It sure sounds low to me. If not, then it could be the wrong oil added, Torque Converter, Transmission oil pump when it is affecting every single gear like that. I wouldn't make a decision yet until you found out what is wrong with it first.

I'm sure others will chime in if they can. Please keep us updated, Thanks.:)


That covers my questions. If the clutches were worn, you would see particles in the fluid. Now if the old fluid had a lot of debris in it, I have seen cases were its better to leave the old fluid in because the debris helps lock the clutches with the steels because of the increased gap between the clutches and steels. Changing the fluid (removing the particles) would suddenly make the trans not shift at all or slip a lot.
Diagnose 1st, never be a parts changer!

355 small block chevy w/ modified 700R4

Image
User avatar
astro355
V8 Swap Achievement
V8 Swap Achievement
Firing on 4 Cylinders (L6)
Firing on 4 Cylinders (L6)
Years of Membership: astro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full yearsastro355 has been a member for 12 full years
Posts: 5484
Topics: 57
Joined: May 2008
Location: Cleveland, OH
Gender: Male
Alias (AKA):
Van Model Year: 1989
Van Make/Model: Chevrolet Astro
Extra Info: 355 V8 700R4

Re: low pump pressure ?

Postby Safari GFX [OP] » March 24th 2009, 10:43pm

I got another transmission from a S-10 4x4,I will first drop the pan to see if any thing out of wack. Is it possible to have a loose filter,I remember when i put it in it did not seem as secure as I thought it sould be. The transmission came with a torque converter,my stupid question is should I use this one or use the one from the van,are they the same spec,do I use the vss from the van or are the rear end ratio etc.are are set in the computer? thanks for your help Michael
2000 Safari,awd,limited slip rear end, 3.73 ,tow package,front and rear heat/air,GFX ground effects
Original Poster [OP]
User avatar
Safari GFX
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: Safari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full years
Posts: 21
Topics: 9
Joined: February 2008
Gender: Male
Alias (AKA):

Re: low pump pressure ?

Postby Matrixx » March 25th 2009, 3:46am

Hi mattsrevenge

Yes, a loose filter can certainly cause this problem. It needs to be seated properly. I wouldn't do anything just yet until you have checked everything with the transmission you have in it now.

I'm sure others will chime in if they can.:)
96-GMC Safari - Rwd - Original Transmission - Exhaust - Air Cared - 3.73 Limited Slip Rear End - Motor Replaced - 91 octane (Chevron) for the last 14 years - MFI Upgrade - 640,000 Kilometers.
User avatar
Matrixx
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 6 Cylinders (L3)
Firing on 6 Cylinders (L3)
Years of Membership: Matrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full years
Posts: 2640
Topics: 14
Joined: January 2008
Alias (AKA):

Re: low pump pressure ?

Postby Safari GFX [OP] » March 26th 2009, 4:54pm

Good News I hope,we dropped the pan and the filter was off,it seemed to laying on the bottom of the pan,it may not have been the right filter,after trying different filters we got the right one.The transmisssion does not slip now,we will see how it goes in the next few days.There is listing for deep and shallow pans,and there is differences between suppliers. Someone told me that to change the engine in a 2000 awd ,year 2000 only that the rad support has to cut out,other years supports are bolted on.
2000 Safari,awd,limited slip rear end, 3.73 ,tow package,front and rear heat/air,GFX ground effects
Original Poster [OP]
User avatar
Safari GFX
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: Safari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full years
Posts: 21
Topics: 9
Joined: February 2008
Gender: Male
Alias (AKA):

Re: low pump pressure ?

Postby Matrixx » March 26th 2009, 5:03pm

Hi Safari GFX

I'm glad you found the problem, that saved you a few bucks I'm sure.

As for the cutting the radiator support, that applies to every astro/safari van made from 1995 and up.

My gallery:
gallery2.php?g2_itemId=457

:)
96-GMC Safari - Rwd - Original Transmission - Exhaust - Air Cared - 3.73 Limited Slip Rear End - Motor Replaced - 91 octane (Chevron) for the last 14 years - MFI Upgrade - 640,000 Kilometers.
User avatar
Matrixx
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 6 Cylinders (L3)
Firing on 6 Cylinders (L3)
Years of Membership: Matrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full years
Posts: 2640
Topics: 14
Joined: January 2008
Alias (AKA):

Re: low pump pressure ?

Postby Safari GFX [OP] » March 26th 2009, 8:28pm

Ok ,I could not see why they would do it for one year,it mush have been a strength issue or a way to cut production cost.I hope I don't ever have to replace the engine,but a V8 awd would be nice. Now we will replace the abs pump, I wonder if the placement of it has any thing to do with it burning out .They always say LOCATION,LOCATION ,LOCATION, there is limited real estate under the hood .
2000 Safari,awd,limited slip rear end, 3.73 ,tow package,front and rear heat/air,GFX ground effects
Original Poster [OP]
User avatar
Safari GFX
Fueling (1/8 tank)
Fueling (1/8 tank)
Years of Membership: Safari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full yearsSafari GFX has been a member for 13 full years
Posts: 21
Topics: 9
Joined: February 2008
Gender: Male
Alias (AKA):

Re: low pump pressure ?

Postby Matrixx » March 27th 2009, 2:35am

Hi Safari GFX

ABS pump burning out? hmm, ok. I still have my original ABS system in mine. If they fail it's "usually" corrosion at the plug-ins that causes ABS faults. I spray mine down with WD40 a couple times a year and use Die-Electric Grease on the plug-ins. No problems so far with mine.:)
96-GMC Safari - Rwd - Original Transmission - Exhaust - Air Cared - 3.73 Limited Slip Rear End - Motor Replaced - 91 octane (Chevron) for the last 14 years - MFI Upgrade - 640,000 Kilometers.
User avatar
Matrixx
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 6 Cylinders (L3)
Firing on 6 Cylinders (L3)
Years of Membership: Matrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full yearsMatrixx has been a member for 13 full years
Posts: 2640
Topics: 14
Joined: January 2008
Alias (AKA):


 
  • Related topics
    Replies
    Views
    Last post

Return to Automatic

It is currently March 1st 2021, 1:11am

Automatic Forum
AutomaticThe purpose of an Automatic Transmission is similar to that of a manual transmission, the auto tranny's primary duty is to allow the engine to operate in its narrow range of speeds while providing a wide range of output speeds.
To create a new topic in Automatic, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
AngryPunk
in Automatic
Views: 240
Comments: 15
Date: Feb 18 '21
Time: 11:47pm
» Read last comment
Attached by:
Youngblood
in Automatic
Views: 137
Comments: 3
Date: Jan 15 '21
Time: 1:24am
» Read last comment
Attached by:
allenstoltzfus
in Automatic
Views: 310
Comments: 11
Date: Jan 14 '21
Time: 7:36pm
» Read last comment
Attached by:
runawayjim
in Automatic
Views: 206
Comments: 5
Date: Jan 07 '21
Time: 2:09pm
» Read last comment
Attached by:
Attached by: SportsBoy
SportsBoy
in Automatic
Views: 2885
Comments: 16
Date: Jan 05 '21
Time: 11:16pm
» Read last comment
Sponsors

Who is online

Users browsing this forum: Google Adsense [Bot] and 14 guests