oldsmobile forums   oldsmobile forums


Go Back   Oldsmobile Forums > Most Recent Oldsmobile Models > Oldsmobile Alero

Notices

Oldsmobile Alero Forum specifically intended for Oldsmobile Alero based discussions.

Oldsmobile Forum: 2001 Alero - No start
Reply
 
Thread Tools
  #1  
Old April 5th, 2018
christotwy christotwy is offline
Junior Member
 
Join Date: Apr 2018
Location: Utah, USA
Posts: 2
christotwy is on a distinguished road
2001 Alero - No start

I have a 2001 Alero that I recently replaced the fuel pump, fuel filter and fuel pressure regulator on. Worked great for a week or so. Now, it doesn't want to run the fuel pump during the warning light test, prior to cranking. That means no start, just a few sputters and nada while cranking. (The battery and alternator are both new too.)

I opened up the fuse / relay cover under the hood, removed the fuel pump relay and tested the input (coil) voltage to the relay and I see 0.0 when I turn the key to "on". So it looks like the ECM isn't even trying to run the fuel pump?

If I disconnect the battery and short the battery cables together for a few seconds, then re-attach them, that sometimes will get it to run after a few tries. (may be just the extra tries and not related to the battery at all... )

What's my next move? I bought a crankshaft position sensor, but I don't think that would stop the fuel pump run when the key is turned to "on". Am I wrong?

Thanks to all in advance!
Reply With Quote

  #2  
Old April 6th, 2018
Cutlass350 Cutlass350 is offline
Senior Member
 
Join Date: Aug 2012
Location: New England! :-)
Posts: 634
Cutlass350 is on a distinguished road
Sounds like you have a decent understanding of cars and how to repair them.

What are the OBD-II error codes?

Also, what's the excuse for not spending the super mega massive amount of ~~$55+ to get the proper GM/Olds Dealer Service manuals?

Let me guess, "abey" are 4 letters that you consider to be the embodiment of evil incarnate? :-O

Gee, all along I, like a gazillion other people , that that Taylor Swift was the embodiment of evil incarnate?




Ebay search:
2001 alero service manual

https://www.ebay.com/sch/i.html?_fro...manual&_sop=15

Note, get the correct year for your car. Engines, etc, change over the years.


Does the engine crank?
If not, it could be the security.

If the starter turns, but the pump relay doesn't get 12v, then you'll need to see what the Dealer Service Manual says about diagnosing no power to the fuel pump.

Iirc, on ?some years?, if the crank sensor was not plugged in (bad wire, etc), then the ECM wouldn't turn on the fuel pump.



And, never ever forget....



Edit:
I just remembered that Taylor Swift sang with Mick Jagger. Even though I'm not a fan of the Rolling Stones or Mick Jagger, even *I* have to admit that her singing with Mick Jagger is rather cool.
http://www.mickjagger.com/news/mick-and-taylor-swift



Good Luck!

Last edited by Cutlass350; April 6th, 2018 at 01:46 AM.
Reply With Quote
  #3  
Old April 7th, 2018
Cutlass350 Cutlass350 is offline
Senior Member
 
Join Date: Aug 2012
Location: New England! :-)
Posts: 634
Cutlass350 is on a distinguished road
Quote:
Originally Posted by christotwy View Post
If I disconnect the battery and short the battery cables together for a few seconds, then re-attach them, that sometimes will get it to run after a few tries.
For the OP and others, please never short the battery cables together to drain the backup capacitors in the ECM, radio, Air bag, ABS, etc, etc.

Yea, some fool mechanics may do that. But, they do not care if your electronics then have problems in 1 -> 5 -> 10 years. In fact, they need the business.

Real ASE certified mechanics that know what they are doing use an "Antizap Auto Surge Protector" like the:
https://www.amazon.com/OTC-3386-Anti.../dp/B000F5JLP0
OTC 3386 Antizap Auto Surge Protector - 12 V
Price: $80.50




With many of the newer cars, an antizap protector is critical in not damaging the $$$$ electronics. Also, the damage that may be done to electronics often may not show up for a while! That could be days, weeks, months, or years.

I have the above protector and use it when removing or installing a battery.

On one of my cars, it would be a very very expensive mistake ($1,000+) to replace even just one of the few electronic components, and then to have to take it to the Dealer to have it programmed for the car's unique ID and features.
Yea, the newer cars can be a PITA, and expensive, to repair.

Last edited by Cutlass350; April 7th, 2018 at 08:18 PM.
Reply With Quote
  #4  
Old April 26th, 2018
christotwy christotwy is offline
Junior Member
 
Join Date: Apr 2018
Location: Utah, USA
Posts: 2
christotwy is on a distinguished road
After reading up on the operation of the ECM, it looks like the very first sensor to be checked is engine temp. I disconnected it, cleaned it off a bit and reconnected, then I have had zero problems since. Not 100% sure that this caused my problem or if it was a strange coincidence, but I haven't had a single hiccup. *shrug*

Thanks to all of you for your input!
Reply With Quote
Reply

Tags
fuel pump, no start


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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

Forum Jump



All times are GMT -4. The time now is 04:05 PM.


Advertising
cars connected social network




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
oldsmobileforums.com recognizes that "Oldsmobile", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. oldsmobileforums.com is not affiliated in any way with the General Motors Corporation, Oldsmobile or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. ©2017 oldsmobileforums.com. All rights reserved.
MADISON ROSS MEDIA GROUP MARKETPLACE
Need products for your Oldsmobile? Check out your options at the links below:

Miss that Olds 442? Believe it or not, Kia may have something for you. The Kia Stinger is a large sport-oriented hatchback sedan in the mold of the Audi A7.