Gain extra benefits by becoming a Supporting Member Click here find out how!
Gold ***Platinum***
Clarke57 (7)stefanPWagonsouth (2)74camaro (4)tri5ss (8)
Dadson 66project KeeferZJrMYFIRST64 (4) V8 supercars66JR
Don57 (9)50_Fastback62swagonRkoss71RICH57TRUCK (7)
63Biscuitjpfitpro62BillT (13)56handyman (6)DANOVBSO
59REVIVAL51 Chevy N Mississippi
timmyg65Vaughn (13)RumblingV8 (2)
Monty56 (11)59fins (13)feffin (8)DonB51Chev (3)
MAC MANBad56Sedan (8)
WagonCrazy (8)
Kevin Anderson (9)
Nailheadv8 (9)
Maui Doc
Classic Performance Products
Ciadella Interiors American Auto Wire Art
Exile® Battery Keeper™ 6/12 volt charger w/ LED battery monitor
Low priced Genuine GM Auto PartsHarbor Freight
Hellwig Products IncPerformance Rod & Custom
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

  >> Switch to Mobile Version <<

Recent Hot Topics
Current Quote
"I've gotten my money's worth many times over. I don't know how people managed to get anything figured out on their old cars before the internet.
This site's the best!"
~ Supporting Member
Recent Topics
Join the Community today

Username Post: 1998 vortec 454 timing?        (Topic#261283)
Forum Newbie
Posts: 2

Reg: 04-15-11
04-15-11 06:37 PM - Post#2077241    

so my vortec's M.I.L. is on with a p1345 trouble code: cam/crank correlation my timings at 20-25* around 1200rpm sapose to be 0-2* to be inspec ive tried my disbritor a tooth over in both directons an it dosent change my cam sensor messed up? ive heard the cam sensor is what cuases the p1345 code any help or any educated guess's would be apprieciated-J

Low priced Genuine GM Auto Parts
Posts: 25680
Age: 44
Loc: Texas
Reg: 08-01-03
04-16-11 03:20 PM - Post#2077545    
    In response to 98beast

Put the timing light away; it's useless to you on a Vortec. You need a scan tool that can read the "cam retard" figure. With RPM's held at 1,000 or more, the cam retard must read within +/- 2 degrees of zero. You adjust the distributor until you get this.

If you set it this way, clear the codes, and P1345 returns then the distributor is the most likely suspect as it's probably badly worn. Before you remove it make TWO marks - distributor body position, AND rotor position - install the new distributor as close as humanly possible to those two marks, then use your scan tool to fine-tune the timing as specified.

94 C2500LD / 94 C1500 / 06 300C SRT8 .. and an LS-swapped 97 Suburban
Check out my truck shop projects

Low priced Genuine GM Auto Parts
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 6.126 seconds.   Total Queries: 24   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 11:17 AM