'97 4.3 S10 bogging problem....FPR was bad, and inj. o-rings - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Lounge For casual talk about things unrelated to General Motors. In other words, off-topic stuff. And anything else that does not fit Section Description.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-30-2007, 02:44 PM   #21
Junior Member
Thread Starter
 
Join Date: Apr 2006
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Bonneville92V688 is on a distinguished road
Default

Update! FP is 1-2 PSI lower than what it'* supposed to be, so I decided to pull the composite upper intake off, sure enough, gas pooled in the LIM. Looks like the FPR failed by how there was gas leaking out of the vacuum nipple for it. That and the injector O rings will be replaced, along with the UIM gasket and TB gasket. Oh well I am not worried, its quite typical for the CSFI system.
Bonneville92V688 is offline   Reply With Quote
Old 03-30-2007, 02:48 PM   #22
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Yes this is a common issues with that system... Its a freaky design, but it does serve its purpose.. I think GM should have just designed a true PFI system for it as opposed to having it hang out in the intake...

You should get a lot of miles out of that 4.3

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 03-31-2007, 09:07 PM   #23
Junior Member
Thread Starter
 
Join Date: Apr 2006
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Bonneville92V688 is on a distinguished road
Default

Well I ordered a FPR, injector o-ring pack, fuel line o-rings, plenum gasket, and TB gasket. We shall see how it goes this week. Yeah but sure enough, the FPR was bad, I hooked it up to a vacuum gauge to see if it held vacuum, and sure enough, it didn't, I could hear it leaking. I swear GM and their Bosch FPRs. Here are just some random *** pics.

Circled in red, where the gas was pooled.

Injectors anyone?

UIM

Nice, clean TB

Current way it is
Bonneville92V688 is offline   Reply With Quote
Old 04-05-2007, 09:16 AM   #24
Junior Member
Thread Starter
 
Join Date: Apr 2006
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Bonneville92V688 is on a distinguished road
Default

Parts came yesterday!

Bonneville92V688 is offline   Reply With Quote
Old 04-05-2007, 09:17 AM   #25
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

Great..things look ready to be reassembled... remember to lightly apply some PTFE GM pipe sealant to the threads on teh lower intake bolts to keep oil from wicking up them.
BillBoost37 is offline   Reply With Quote
Old 04-05-2007, 09:32 AM   #26
Junior Member
 
Join Date: Aug 2005
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
wjcollier07 is on a distinguished road
Default

Wow that looks like a ton of fun. Hope it all works out. Take it out for a run and take a video!! Good luck with that!!
wjcollier07 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Engine bogging, running problem c_pease GMC/Chevrolet Truck/SUV 9 03-14-2014 12:15 AM
91 Riv, no spark, no inj pulse ToddC Buick 5 09-12-2011 09:02 PM
OEM FPR or Adjustable FPR?? BLACK94SSEi 1992-1999 1 11-09-2006 08:28 PM
Bogging problem bigbadbonneville 1992-1999 3 06-30-2006 01:03 AM
The number 4 inj won't work DAVID94SSEI 1992-1999 17 11-15-2004 02:08 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 10:57 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.