No Fuel Pressure - Replacement Fuel Pump - 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 07-23-2007, 11:48 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2006
Location: Central Arkansas
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
ccotten is on a distinguished road
Default No Fuel Pressure - Replacement Fuel Pump

My PA is not starting and I have no fuel pressure at the rail. I have checked the fuse, checked at the fuel pump control module and at the connector at the fuel pump, I have power all the way to the pump connector. So, looks like I have a toasted fuel pump. Is there any other test that I should do before laying down the big bucks?

Should I stick to AC/Delco as a replacement or are other brands just as reliable - NAPA, O'Riley, Auto Zone etc.?
ccotten is offline   Reply With Quote
Old 07-23-2007, 12:36 PM   #2
Senior Member
Posts like a Corvette
 
Join Date: Feb 2007
Location: Sanford Michigan
Posts: 1,200
Thanks: 0
Thanked 0 Times in 0 Posts
crash93ssei is on a distinguished road
Default

You said that you checked for power pretty much everywhere.... I assume that you are sure that the pump is actually NOT running right?

I am not really sure on any other tests for the pump itself, but I would also check the filter. Whether or not the pump is bad and needs replaced, I would change out the filter. Cheap insurance at around $8. Plus a plugged filter can kill a fuel pump, it may still spin / power up, but it won't build any pressure. ( happened on my sisters '01 Malibu )
crash93ssei is offline   Reply With Quote
Old 07-23-2007, 12:45 PM   #3
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

I don't know if it'* there on your newer car, but on at least early 90'* h-bodies there is an empty green electical connector above the battery. It'* the fuel pump prime lead. Connect a fused (20 amp should do it) 8 gauge wire to it and the positive terminal of the battery. The pump should kick on if it'* alive.
J Wikoff is offline   Reply With Quote
Old 07-23-2007, 02:18 PM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

I would stick it out with an AC Delco. Other brands do work..I've used the Advance Auto ones..I think it was a Carter. If money is tight..head that way.

It will come with a new strainer sock, and while you are at it..change out the fuel filter as mentioned above. Beyond that..the only other thing I might try (if you are unsure if pump is running) is to remove the vacuum line to the regulator to check for any fuel in it.
BillBoost37 is offline   Reply With Quote
Old 07-23-2007, 02:40 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2006
Location: Central Arkansas
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
ccotten is on a distinguished road
Default

Thanks for the feedback. At least there is an access panel in the trunk for the fuel pump and I didn't have to drop the tank.
ccotten is offline   Reply With Quote
Old 07-23-2007, 03:02 PM   #6
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

I think everyone should drop the tank...it'* a character building experience.

That panel should save you a ton of time.
BillBoost37 is offline   Reply With Quote
Old 07-24-2007, 10:44 AM   #7
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2006
Location: Central Arkansas
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
ccotten is on a distinguished road
Default

Now I'm looking for tips and tricks to get the locking ring off that holds the fuel pump in. I had assumed that a few hits with my brass punch against the ring would get it to rotate and come off. Well so much for my assumptions! Maybe Boost is right and I need to go throughthe character building exercise and get this thing in the open where I can get to it better.

Has anyone developed their own wrench to twist the ring off or do I just keep at it with a hammer and punch? Does any of the wrench suppliers have an adjustable spanner that will work? For you guys that have replaced a fuel pump, how did you get the ring off?

Thanks
ccotten is offline   Reply With Quote
Old 07-24-2007, 10:48 AM   #8
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

There is an actual tool for that ring. Most of the time when you hit the ring..it moves to one side and binds up. Use a screwdriver or some other tool not intended for prying and push it back to a more centered position. Hit again..You'll get it.
BillBoost37 is offline   Reply With Quote
Old 07-25-2007, 10:43 AM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2006
Location: Central Arkansas
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
ccotten is on a distinguished road
Default

Boosty is right, perservance does pay off. One of my troubles was that is was difficult to get a good straight hit on the locking ring. I had been trying to use my brass punch, to eliminate the chance for sparks, but it didn't engage the ring very well. I resorted to a good old fashioned flat blade screwdriver and was able to persuade it to turn.

After that the replacement was actually anticlimatic. And the good news is that it runs again!!!!

I'll have to save that character building exercise until I have to do the same thing to my Bonne!

Thanks to all for the input and feedback.
ccotten is offline   Reply With Quote
Old 07-25-2007, 12:00 PM   #10
Senior Member
Posts like a Corvette
 
Join Date: Feb 2007
Location: Sanford Michigan
Posts: 1,200
Thanks: 0
Thanked 0 Times in 0 Posts
crash93ssei is on a distinguished road
Default

Glad to hear that it worked for you.

Did you replace the fuel filter also? If not, it would really bo a good idea to do so.
crash93ssei is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
fuel pressure / leak after new fuel pump static1701 2000-2005 10 12-30-2014 10:10 PM
new fuel pump on my 97 deville, got fuel and pressure no start 1johnse2082 Cadillac 3 07-25-2014 01:15 PM
Fuel Pump wont pump skips45acp Oldsmobile 1 08-16-2013 10:46 AM
What does a fuel pressure regulator tell a fuel pump on a Chevy GMC rear wheel drive GunsOfNavarone GMC/Chevrolet Truck/SUV 9 06-01-2011 11:09 AM
Releasing Fuel Pump Pressure to Change Fuel Filter on 94SE mikeblue94 1992-1999 8 10-31-2004 04:20 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 12:09 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.