LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Loss of power, overheating, starter not functioning.

Thread Tools
 
Search this Thread
 
Old Apr 3, 2019 | 10:46 PM
  #1  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default Loss of power, overheating, starter not functioning.

So after what I believed to be a spun bearing happened, I let my car sit for the winter, but now that the weather is getting nice, the bug has bitten, and it's time to fix the car.

So far, I have two major issues, but only when the car gets overheated from running for a few minutes: it refuses to crank over, and it has absolutely no power. I got it up to temperature, took it for a drive around the block, and once I got to a straight bit, I rolled on the throttle to halfway. The car refused to accelerate, even in second gear. By the time that I got to my driveway, the car would not even climb into my driveway in reverse. It lagged on power and stalled out, and then refused to crank over. There would be a click from the starter solenoid, but that was it. Bump starting was not too effective, it would sputter over for enough time to get the gauges up, then it would die. After allowing it to cool off, it started right up. Does anyone have any ideas?
Reply
Old Apr 4, 2019 | 01:02 PM
  #2  
myltwon's Avatar
TECH Addict
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,965
Likes: 7
From: Palm Harbor, FL
Default

sounds like a blown head gasket
Reply
Old Apr 4, 2019 | 01:22 PM
  #3  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

That's my initial thought. Block tester isn't confirming it thought, so I'm not sure where to go from here. I don't want to pull the heads back off just to find out that it doesn't have a HG issue, but if it comes to that, I guess I don't have much choice.
Reply
Old Apr 4, 2019 | 02:19 PM
  #4  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,197
Likes: 130
Default

Does the cooling system hold pressure?
Reply
Old Apr 4, 2019 | 02:40 PM
  #5  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

I will be checking that tonight. I noticed a small puddle of coolant under the car(1/4 cup of fluid) this morning when I left for work, and there was a tiny bit of spray around the driver's side of the radiator, behind the air filter, so I am assuming that something isn't quite right. When I get home I will be checking the connections on the rad.
Reply
Old Apr 4, 2019 | 05:18 PM
  #6  
TheUrbz's Avatar
On The Tree
 
Joined: Jul 2016
Posts: 124
Likes: 3
From: "U aint frum round hur ar ya boy" Texas.
Default

Originally Posted by PyroguyFTW
I will be checking that tonight. I noticed a small puddle of coolant under the car(1/4 cup of fluid) this morning when I left for work, and there was a tiny bit of spray around the driver's side of the radiator, behind the air filter, so I am assuming that something isn't quite right. When I get home I will be checking the connections on the rad.
a pin hole leak in a hose will do this. couldnt see it unless car was running and hoses were under operating pressure, had to crawl under to look at the underside of the WP for that one.
Reply
Old Apr 4, 2019 | 08:15 PM
  #7  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

Originally Posted by TheUrbz
a pin hole leak in a hose will do this. couldnt see it unless car was running and hoses were under operating pressure, had to crawl under to look at the underside of the WP for that one.
Pinhole leak sorted out. It was the radiator inlet hose clamp just a bit loose. Now I've got a really weird knocking like sound that isn't quite from the engine. It only starts when the car warms up and its loudest at the front of the engine, like the timing cover/water pump area and occasionally there will be a squeaking noise

Last edited by PyroguyFTW; Apr 4, 2019 at 08:22 PM.
Reply
Old Apr 5, 2019 | 06:26 AM
  #8  
TheUrbz's Avatar
On The Tree
 
Joined: Jul 2016
Posts: 124
Likes: 3
From: "U aint frum round hur ar ya boy" Texas.
Default

squirrel with a hammer.
check all the pulleys. even when its not in use my wifes AC pulley makes a ******* racket.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Apr 5, 2019 | 07:42 AM
  #9  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

It still occurs with the belt off, so it's either in the WP or the timing cover, I forgot to mention that yesterday. I'm fearful that it's something in the timing set, because I just replaced that and I really don't want to have to replace it again, but I will if I must. If it's something in the WP I'll just get an electric one to replace it.
Reply
Old Apr 5, 2019 | 11:18 AM
  #10  
myltwon's Avatar
TECH Addict
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,965
Likes: 7
From: Palm Harbor, FL
Default

waterpump dripping on opti maybe?
Reply
Old Apr 6, 2019 | 03:36 PM
  #11  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

Originally Posted by myltwon
waterpump dripping on opti maybe?
No leaks below the car, and the opti is dry as a bone. I pulled off the DS rocker cover and the pushrods for #7 aren't flowing any oil it seems, and the squeaking is louder when I have the valve cover off

Well it's done for. The passenger side rockers weren't getting oil, either. I guess it's time for a rebuild

Last edited by PyroguyFTW; Apr 6, 2019 at 10:34 PM.
Reply
Old Apr 11, 2019 | 01:27 PM
  #12  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

Does anyone know if these symptoms could be a collapsed lifter?
I'm looking for alternatives to a bad rod bearing, and I'm just digging for other alternatives now.
Reply
Old Apr 11, 2019 | 06:58 PM
  #13  
TheUrbz's Avatar
On The Tree
 
Joined: Jul 2016
Posts: 124
Likes: 3
From: "U aint frum round hur ar ya boy" Texas.
Default

pyro man i dont know if troubleshoot tree-ing your ride is the way to go bud. i know it may not be economically feasible but for the sheer peace of mind id rip the motor out and spend a weekend puttin it back together. you may stop the weird noises and querks, but you wont know for sure unless you get ***** deep in it.
Reply
Old Jul 3, 2020 | 09:56 AM
  #14  
PyroguyFTW's Avatar
Thread Starter
Banned
iTrader: (1)
 
Joined: Aug 2016
Posts: 189
Likes: 2
From: PA
Default

Originally Posted by TheUrbz
pyro man i dont know if troubleshoot tree-ing your ride is the way to go bud. i know it may not be economically feasible but for the sheer peace of mind id rip the motor out and spend a weekend puttin it back together. you may stop the weird noises and querks, but you wont know for sure unless you get ***** deep in it.
Long term update: pulled the engine, and as a wise man once said, S#!t's FUBAR. I need a new bottom end at the minimum, so at this point I'm trying to see if I can sell the car as a roller, and just get my "C5Z fund" started, since my long term goal is a car I can use to run and learn HPDE.
Reply




All times are GMT -5. The time now is 06:34 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE