98 tahoe timing question - Chevrolet Forum - Chevy Enthusiasts Forums

Go Back   Chevrolet Forum - Chevy Enthusiasts Forums > Current Chevy Trucks, SUV's, Crossovers & Vans > Tahoe & Suburban
Log In 

Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900
Sponsored by: Dorman

LinkBack Thread Tools Search this Thread
Old 03-11-2011, 01:16 PM
CF Beginner
Join Date: Jul 2009
Posts: 3
Default 98 tahoe timing question

I have an 98 tahoe with a 5.7 i was wondering how to set the timing. i have read on here to use a scan tool. so i got a bluepoint YA3140 scan tool. heres so of the live readiings map 9.1 ,eng rpm 650, spark adv 22, maf .808 . no matter where i move the dist. the spark adv. stays between 22 - 24. i have read it should be 0 +/- 2. it runs ok but starts hard some times. any help would be greatly appreciated.
Reply With Quote
Old 03-11-2011, 07:07 PM
MDTAHOE's Avatar
Super Moderator
Professional Mechanic
Join Date: Nov 2008
Location: Bowie, MD
Posts: 2,955

Spark advance is not the correct item. You need to look for "cam retard" . Also after each turn of the dis you must snap the throttle above 2000 rpm to update the reading.
ASE Master Tech, L1 Advance Engine Performance certified
I will not answer repair questions by PM, if you would like my input you can PM me and ask me to reply to your public thread.
Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
2007 HHR have a timing chain or a timing belt jmms HHR 1 04-17-2015 05:22 AM
just purchased 07 tahoe w/100k miles - Timing Belt Question aubiexx Tahoe & Suburban 1 11-24-2010 09:00 PM
timing chain question abclrc Monte Carlo & Lumina 0 07-01-2008 04:57 PM
89 G20 van with 5.7tbi, timing chain question nitrochevy Engine Building & Overhauling 1 04-20-2007 03:49 AM
Timing chain or timing belt? LetsGoMets78 Cobalt 1 12-18-2006 03:48 PM

57, 98, adjust, advance, blue, check, chevy, point, review, scan, snap, spark, tahoe, timing, tool, ya3140

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 01:12 AM.