Long cranks in the morning - Page 3 - Chevy Impala SS Forum
 1Likes
Reply
 
LinkBack Thread Tools Display Modes
post #21 of 30 (permalink) Old 06-20-2018, 03:31 PM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
Quote:
Originally Posted by BALLSS View Post
the strainer should come with the pump assembly...but you can buy them separate for a few $

RA has the Spectra for $89
https://www.rockauto.com/en/moreinfo...027404&jsn=418


...and the Delphi for $218

https://www.rockauto.com/en/moreinfo...027404&jsn=419

if given a choice I would use Delphi....but there is a considerable price difference...but you do often get what you pay for
I carefully pried off the original strainer and snapped it on new Spectra pump. Everything is back in tank and ready to be placed back on the car.

The original pump had discoloration (dark) around negative side, but the wires are fine. Will post pictures later. Have to finish the job before it rains!

Okay. The new pump is in and everything seems to be fine. The FPR works as it was supposed to do, so it was not the problem. The problem was the original fuel pump, which overheated internally and caused discoloration of the plastic.

There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.

Last edited by HUF; 06-20-2018 at 06:08 PM.
HUF is offline  
Sponsored Links
Advertisement
 
post #22 of 30 (permalink) Old 06-20-2018, 06:11 PM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
Here is the original pump. 123,000 miles 22 years old.
Attached Thumbnails
Click image for larger version

Name:	IMG_2816 - Edited.jpg
Views:	24
Size:	52.0 KB
ID:	178572  


There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.
HUF is offline  
post #23 of 30 (permalink) Old 06-22-2018, 11:17 AM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
The pump I have replaced had that rubber on it just as it is shown in the picture. So, I took it off and put on the new Spectra pump.

I am curious, what are those two other rubber parts for? One looks like a piece of hose and the other is a smaller part, which looks like a rubber retainer/spacer with complex geometry. Thanks.
Attached Thumbnails
Click image for larger version

Name:	Screenshot 2018-06-22 at 12.15.01.jpg
Views:	15
Size:	13.2 KB
ID:	178576  


There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.
HUF is offline  
 
post #24 of 30 (permalink) Old 04-08-2019, 11:47 PM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
Well, seven months and 1,400 months later I had a no start condition (only cranking). Unfortunately, could not check the spark, fuel pressure, etc. right away. Next morning, the car started right away and fuel pressure was within specs. Parked the car for months. Was afraid to drive without knowing what caused no start.

Will be driving only to make the car act up again and have the opportunity to test spark, fuel pressure, etc when it happens again. Nevertheless, I have a question. Did anybody have a bad luck with Spectra pump AND housing assembly, not just a Spectra pump. I suspect the old wiring is the problem I am having. The negative wire going to the pump was quite fried , but the connector itself looked fine.

BTW, if anybody want to see the original ACDelco pump dissected here are some pictures.

There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.
HUF is offline  
post #25 of 30 (permalink) Old 04-09-2019, 06:09 AM
Senior Member
 
Join Date: Jan 2001
Location: St. Louis
Posts: 7,280
 
Quote:
Originally Posted by HUF View Post
....I had a no start condition (only cranking). ......Next morning, the car started right away and fuel pressure was within specs.
Sounds like temperature changed enough or you jostled things enough to re-establish pump connection(s). It could be loose wiring on IC/ICM ????

...... I have a question. Did anybody have a bad luck with Spectra pump AND housing assembly, not just a Spectra pump. I suspect the old wiring is the problem I am having.
Never had trouble with the replacement Spectra, but had to drop the tank again 1 month afterward to tighten up the lug on one connection. No issues in 5 years since

The negative wire going to the pump was quite fried , but the connector itself looked fine.
So was one of the connections on mine. Insulation was burnt completely off the end 1 1/2".

.......

Carry a pc. of 2x4 and wack the tank next time a no-start to confirm if just a loose connection. I didn't read whole thread. Did you install all-new harness, sender? I recall something about a bigger-wire upgrade harness ?Airtex?

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear)
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HomeDepot pipe w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCAs, Airlift 1000, Monroe SS, PowerTrax No-Slip, and now CTS wheels with +1 rubber. Finally, wait for it... LT-4 knock sensor!
96 Black is offline  
post #26 of 30 (permalink) Old 04-09-2019, 12:31 PM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
96Black,

Thank you for your advice. No, I did not put a new wiring harness. A big mistake, I guess.
Because Spectra fuel pump, sending unit assembly (the whole thing) is under $100, I am thinking of buying one. I think all negativity about Spectra pumps is mostly because of not installing new harness while replacing the old pump.

There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.
HUF is offline  
post #27 of 30 (permalink) Old 04-09-2019, 06:47 PM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
Today, I idled the engine for 60 minutes to make the fuel pump/wiring or whatever else was the culprit to overheat and cause no start condition, but car UNFORTUNATELY (!) started again and again and again... The fuel pressure was within specs.

There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.
HUF is offline  
post #28 of 30 (permalink) Old 04-09-2019, 06:57 PM
Junior Member
 
Join Date: Sep 2017
Posts: 18
 
Quote:
Originally Posted by HUF View Post
Long cranks only in the morning. Checked fuel pressure and found it between 20 psi and 28 psi primed. The key on/off trick helped a bit. What really surprised me (unpleasantly) the idle pressure was 35 psi with AND without FPR. The gauge needle was fluttering. The vacuum at the FPR port was 18". It used to be 20". No signs of fuel in FPR port. It used to be 44 psi with vacuum removed from FPR. Do you think the FPR is shot or maybe vacuum is too low to make it work?
Checked vacuum at the optispark vent and it was 15" (used to be 18").

I have a replacement fuel pump but it looks as soon as one replaces the original pump, one keeps replacing them again and again...
OMG i had the same troubles last year, turned out being the aftermarket fuel pump their all made in china and are crap! I was told about this website that sells all O.E. gm parts for cheap i ended up trying them and my fuel pump issues are no more so try a o.e. part it worked for me. check out www.gmpartsprime.com i would suggest them to any one.
Impalapro is offline  
post #29 of 30 (permalink) Old 04-09-2019, 07:00 PM Thread Starter
HUF
Senior Member
 
HUF's Avatar
 
Join Date: Aug 2009
Location: Western Massachusetts
Posts: 1,104
 
Impalapro,

Thank you, but that was the original (GM) fuel pump with 122,000 miles on it.
The price for the same ACDelco fuel pump at the site you recommended is 1.5 times the one at Amazon. I'll stick with Amazon.
https://www.gmpartsprime.com/oem/cad...-25163464.html
https://www.amazon.com/dp/B000C9QNZU...v_ov_lig_dp_it

There’s nothing as permanent as a temporary solution.

1995 Cadillac Fleetwood Brougham 122,XXX miles.

Last edited by HUF; 04-09-2019 at 07:51 PM.
HUF is offline  
post #30 of 30 (permalink) Old 04-09-2019, 07:45 PM
Senior Member
 
gbhs72's Avatar
 
Join Date: Nov 2015
Location: Lawton, Ok
Posts: 1,235
 
Quote:
Originally Posted by Impalapro View Post
OMG i had the same troubles last year, turned out being the aftermarket fuel pump their all made in china and are crap! I was told about this website that sells all O.E. gm parts for cheap i ended up trying them and my fuel pump issues are no more so try a o.e. part it worked for me. check out www.gmpartsprime.com i would suggest them to any one.
Yeah I think all Y'all may be right.

Mark: Snowman-33

93 9C1: Work & Cubic Ca$h This started with a new headlight and fender Celeritas In Conficiendo
gbhs72 is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome