I have a problem - LS1TECH

Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

I have a problem

Thread Tools Search this Thread
Old 01-15-2003, 09:31 AM   #1
TECH Apprentice
Thread Starter
Join Date: Nov 2001
Location: Ottawa
Posts: 314
Default I have a problem

But I cannot determine which forum it fits in.....I'll post it here, someone can move it to appropriate forum please????? Or perhaps a troubleshooting forum would be good?

Here is my problem:

Last night and this morning I noticed what I think to be a slight hesitation. Here are the (some perceived) facts of the story:

2000 Z28 (which of course means LS1), approx 57000 kms of use, M6.

Just after coasting in 5th gear for a short time and then applying light throttle, the engine seems to pause and then continue on. No jolting response after the pause, just seems to take a few milliseconds to think about it and then proceeds. Happened both times at around 1600-1800 rpm (about 60-70 kph) in 5th gear. That is the lower range of 5th gear, but it doesn't sound or feel like the engine is being lugged. I have driven this speed in 5th gear many many times over the past 3+ years since I got the car and never noticed this.

It seems odd that it only happens during these conditions (being rather cold as well right now), so I would doubt ignition or fuel.....maybe the ignition control modules are just cold?

Any thoughts about this?
BBYZED is offline   Reply With Quote
Old 01-15-2003, 10:16 AM   #2
TECH Senior Member
Patman's Avatar
Join Date: Nov 2001
Location: Mississauga, Ontario
Posts: 7,234
Default Re: I have a problem

I had an almost identical problem in my 94 Grand Am GT, which was a 3.1 automatic. It would do it at 50mph in overdrive only.

Turns out that it was the use of gas line antifreeze which caused it, and changing the plugs solved it. I guess the isopropyl alcohol messed up the plugs somehow.
Patman is offline   Reply With Quote
Old 01-15-2003, 01:01 PM   #3
Teching In
Join Date: Nov 2001
Location: St. Louis, MO
Posts: 22
Default Re: I have a problem

Mine does the same thing. Except it does it in every gear.
004mula is offline   Reply With Quote

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 On
Refbacks are Off

All times are GMT -5. The time now is 04:20 AM.