The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-03-2014, 07:25 PM   #1
68c10owner
Registered User
 
68c10owner's Avatar
 
Join Date: Oct 2003
Location: Sacramento, California
Posts: 2,935
97 gmc 5.7 wont start

changed plugs and wires, fired it up and it ran fine. cleared some codes and fired it up to see if they would come back and it ran fine. go clean up and head out to get some lunch and wont fire. this thing fought me all afternoon and I'm spent
__________________
Anthony
85 GMC Sierra SWB
68c10owner is offline   Reply With Quote
Old 01-03-2014, 09:11 PM   #2
95 S_Trucker
Senior Member
 
95 S_Trucker's Avatar
 
Join Date: Oct 2009
Location: Lancaster, PA
Posts: 1,979
Re: 97 gmc 5.7 wont start

Check fuel pressure. If you have fuel pressure, check for spark. Let us know what you find.
__________________
-99 K2500 LS CCSB 7.4
-11 GMC 2500HD SLE CCSB 6.0
-96 C3500 HD 7.4 NV4500 Rollback
-85 K10 5.7 700r4
-78 K10 5.7 4 Speed
-90 ZR1 5.7 6 Speed
-62 Lincoln Sedan 430 Auto
-61 Lincoln Convertable 430 Auto


85 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=368864

78 Big10 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=383629

96 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=614515
95 S_Trucker is online now   Reply With Quote
Old 01-03-2014, 09:15 PM   #3
68c10owner
Registered User
 
68c10owner's Avatar
 
Join Date: Oct 2003
Location: Sacramento, California
Posts: 2,935
Re: 97 gmc 5.7 wont start

Quote:
Originally Posted by 95 S_Trucker View Post
Check fuel pressure. If you have fuel pressure, check for spark. Let us know what you find.

I`m betting its a spark issue. It ran perfect when I fired it up after changing everything. Then ran perfect after clearing the codes. I`m not sure if I could have hit something but funny that it ran perfect before. I do hear the fuel pump cycle but guess its possible it`s bad. Had to walk my kids down the road for lunch and just got back a bit ago so I havent been able to get back to it.
__________________
Anthony
85 GMC Sierra SWB
68c10owner is offline   Reply With Quote
Old 01-03-2014, 10:00 PM   #4
68c10owner
Registered User
 
68c10owner's Avatar
 
Join Date: Oct 2003
Location: Sacramento, California
Posts: 2,935
Re: 97 gmc 5.7 wont start

sprayed some starting fluid into the throttle body and got nothing. Its something in the ignition I`m sure. I`m going to go get my spark tested and test light and hopefully have it back on the road tomorrow. Just seems odd that I would have a ignition failure right after doing a tune up. Started it several times after and it ran fine. Weird
__________________
Anthony
85 GMC Sierra SWB
68c10owner is offline   Reply With Quote
Old 01-04-2014, 06:44 PM   #5
68c10owner
Registered User
 
68c10owner's Avatar
 
Join Date: Oct 2003
Location: Sacramento, California
Posts: 2,935
Re: 97 gmc 5.7 wont start

Simple fix. Pickup coil connector was not connected completely. I never touched it so it's been ready to fall off since I got the truck in February. Runs pretty good now but still down on power compared to my old 99 C/K 5.0 vortec.
__________________
Anthony
85 GMC Sierra SWB
68c10owner is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 11:02 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com