cranks but no start...intermittant. Fuel pump? But it works - 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 10-07-2007, 02:05 PM   #1
Junior Member
Thread Starter
 
Join Date: May 2007
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
olds9298 is on a distinguished road
Default cranks but no start...intermittant. Fuel pump? But it works

So I have an odd problem with my 1992 Oldsmobile Ninety-Eight. For a week or two it would hesitate a bit longer than normal while starting it, I would hear a few extra cranks before the engine fired up. Maybe a half second of extra delay. Then one day it just would not start. I live right behind an auto repair shop at the moment so i went and talked to them. A guy came over and hooked a fuel pressure gauge to the fuel rail by the back right hand corner of the engine (closest to the drivers side door) turned the ignition, and got no pressure.
The first shop claimed they hooked power and ground directly to the fuel pump and it would not turn on. They said they were positive it was dead.

They wanted too much to fix it, so I had it towed to somewhere else. (I tried starting it up again and more of the same problems... it would crank just fine but no start) So after I had it towed it started up just fine for the other people. It has been running fine since then (I haven't driven it much) Since I got the car I have always had the problem that when I only have 3 or 4 gallons of gas left in the tank and I go around a corner quickly, the engine won't accelerate right after the turn, I have to wait a second or two for the gas to settle back down in the tank and then it works fine (it doesn't ever die though). The gas tank was almost empty when it wouldn't start, it is full again now.

So I am trying to figure out what the problem may be, I feel like I have a ticking timebomb car now just waiting to fail and would love to proactively resolve this issue... I understand the difficulty of diagnosing a problem when everything is working fine, however I thought the collective wisdom of this forum might be able to point me in the right direction or to someones past similar experience. I am assuming for now it is not the fuel pump itself (I thought once they go out, they are out, and would not just come back and work fine for any reason... I was under the impression the primary reason for failure in a fuel pump is a spring and once its broke, its broke.)

Any info/ideas much appreciated!

Thanks guys
olds9298 is offline   Reply With Quote
Old 10-07-2007, 04:33 PM   #2
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

The '92 Bonnevilles had problems with baffles breaking loose in the tank, causing problems when the tank is less than 1/4 full. That could be your problem, or perhaps the strainer sock came off. You may want to do a search on those items, or wait for someone more familiar with your year to chime in.
Archon is offline   Reply With Quote
Old 10-07-2007, 04:40 PM   #3
Junior Member
Thread Starter
 
Join Date: May 2007
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
olds9298 is on a distinguished road
Default

While both the issues you mentioned seem likely explanations for the behavior during cornering with low fuel, I think there must be something else going on. As no fuel was added by the people I towed it too and it started up for them, I am working on the assumption that the fuel pump is operable and that something in the chain of events that takes place between me turning the key and the fuel pump turning on is intermittently failing.
olds9298 is offline   Reply With Quote
Old 10-07-2007, 06:42 PM   #4
Senior Member
Posts like a Turbo
 
Join Date: Sep 2007
Location: Saginaw, MI
Posts: 345
Thanks: 0
Thanked 0 Times in 0 Posts
TheDude is on a distinguished road
Default

Just because the fuel pump is working, doesnt mean that it is not at fault. A lot of times when a pump goes bad, you can bang on the bottom of the tank and it may come back on. The armature of the pump can land on a bad spot and a lot of times, the banging will jar it loose and let the pump work again.

On a side not, you should try and keep your tank over 1/4 full. The gas actually cools the pump. And when you run low on gas, the pump cant stay as cool and burns up faster.
TheDude is offline   Reply With Quote
Old 10-07-2007, 10:27 PM   #5
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

If yours has a fuel pump relay, check that also.
Archon is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Cranks for 10+ seconds before firing after a new fuel pump install t1475dt 2000-2005 11 01-20-2010 08:33 PM
No Start but it cranks! SuperchargedFury 1987-1991 11 07-27-2005 01:59 PM
my 88 cranks but doesnt start eddieinsac 1987-1991 8 07-22-2005 10:37 PM
94 SSEi cranks but won't start... SynthDude2001 1992-1999 37 01-20-2005 01:57 PM
88 Bonneville cranks but won't start bufordberry 1987-1991 6 07-07-2004 11:37 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 09:20 AM.


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.