1989 Starting problems
Thread Starter
5th Gear
Joined: Apr 2014
Posts: 5
Likes: 0
1989 Starting problems
My 89 Corvette which is in original condition and has 66,000 miles on it has recently developed a problem. It starts right up when cold but is difficult to re-start when warm. I recently added the recommended fuel cleaner to a tank of gas but otherwise, I've done nothing. Appreciate any advice or suggestions.
Jim
Jim
Pro
Joined: Sep 2008
Posts: 694
Likes: 27
From: St James New York
What's your fuel pressure? Does it reman steady after you turn off the ignition? For how long?
Do you still have the original OEM Mutitech fuel injectors? If so you need to get rid of them. They do not last with todays 10% ethanol fuel. What kind of fuel tank cleaner did you use?
Had a similar problem with my '89 and replaced the crappy OEM injectors, ran great after that.
You may also have a falty distributor module that doesn't work properly when hot. Check that as well.
Do you still have the original OEM Mutitech fuel injectors? If so you need to get rid of them. They do not last with todays 10% ethanol fuel. What kind of fuel tank cleaner did you use?
Had a similar problem with my '89 and replaced the crappy OEM injectors, ran great after that.
You may also have a falty distributor module that doesn't work properly when hot. Check that as well.
Last edited by mako41; Jun 10, 2019 at 04:43 PM.
Thread Starter
5th Gear
Joined: Apr 2014
Posts: 5
Likes: 0
Thanks for your responses. No codes. No, it hasn't been tuned in a while but it's driven less than 1000 miles per year. With those potential issues, I guess I'll have to get it checked out professionally.
Jim
Jim
Last edited by arizonajim; Jun 10, 2019 at 04:52 PM.
Pro
Joined: Oct 2003
Posts: 506
Likes: 12
From: Savannah GA
You have multitech injectors. No experience since my 87 has lucas injectors
Take a look at some of these videos they might clue you in on what's going on.
https://fuelinjectorconnection.com/pages/videos
All the notes I've seen they treat people right.
Take a look at some of these videos they might clue you in on what's going on.
https://fuelinjectorconnection.com/pages/videos
All the notes I've seen they treat people right.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski