TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

It always started fine... untill today.

Thread Tools
 
Search this Thread
 
Old Sep 3, 2010 | 08:31 PM
  #1  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
It always started fine... untill today.

Ok guys, help me out.

I have a 1990 iroc 350 TPI. It has never given me any engine problems and has always run beautifully. Until today

I was in the middle of the street turning it around, and it just randomly died in the middle of the street. Had to have some people help push me into the garage. I just put about a quarter tank of gas in it so if that answers any low gas level on a hill questions.

It seems like its not getting any gas, but the PO said he had recently replaced the fuel pump.

Any ideas?

thanks
Reply
Old Sep 3, 2010 | 09:11 PM
  #2  
ATX-Iroc's Avatar
Member
 
Joined: Sep 2007
Posts: 322
Likes: 1
From: Bastrop, Tx
Car: 87 Iroc-Z
Engine: 305 tpi
Transmission: 700-r4
Axle/Gears: 3.42
Re: It always started fine... untill today.

First I would check to see if your getting spark, it sounds like your ignition module died.
Reply
Old Sep 3, 2010 | 10:02 PM
  #3  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

Thanks for the advice, but I went out and got dinner, came back and started it, fired right up! Any ideas what it would have been?

Last edited by james94; Sep 4, 2010 at 06:36 AM. Reason: me dumb
Reply
Old Sep 5, 2010 | 05:43 PM
  #4  
ATX-Iroc's Avatar
Member
 
Joined: Sep 2007
Posts: 322
Likes: 1
From: Bastrop, Tx
Car: 87 Iroc-Z
Engine: 305 tpi
Transmission: 700-r4
Axle/Gears: 3.42
Re: It always started fine... untill today.

Well thats kind of what they do they stop working when theyre hot and then an hour later it will fire up. If it happens again just know that its the module.
Reply
Old Sep 5, 2010 | 11:02 PM
  #5  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

Ok so today it wouldn't fire at all. Where is the module located? How much would a new one cost?

thanks
Reply
Old Sep 5, 2010 | 11:08 PM
  #6  
regal301's Avatar
Member
 
Joined: Sep 2007
Posts: 449
Likes: 0
From: RHODE ISLAND
Car: 1988 iroc-z
Engine: 350 Vortec TPI
Transmission: 700r4
Axle/Gears: 3.73 4th gen Torsen 10bolt
Re: It always started fine... untill today.

under the dist. cap,you need a 5.5mm 1/4 drive socket on a nutdriver or ratchet.

they are normaly $ 20-30.
Reply
Old Sep 5, 2010 | 11:10 PM
  #7  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

Ok thanks alot
Reply
Old Sep 5, 2010 | 11:17 PM
  #8  
regal301's Avatar
Member
 
Joined: Sep 2007
Posts: 449
Likes: 0
From: RHODE ISLAND
Car: 1988 iroc-z
Engine: 350 Vortec TPI
Transmission: 700r4
Axle/Gears: 3.73 4th gen Torsen 10bolt
Re: It always started fine... untill today.

http://www.megamanual.com/ms2/GM_7pinHEI.htm

yours will be the bottom left.

get the cap and rotor off and you will see it.

coat the bottom with the silicone grease they give you before you put it in.
Reply
Old Sep 5, 2010 | 11:22 PM
  #9  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

Thanks regal. I will let you know if I have any more problems.
Reply
Old Sep 11, 2010 | 03:16 PM
  #10  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

Ok, so I got the new module installed, went to start it, and still wont fire!

Any more ideas?
Reply
Old Sep 11, 2010 | 03:37 PM
  #11  
89fbirdformula's Avatar
On Probation
 
Joined: Mar 2010
Posts: 466
Likes: 0
Car: 1989 Formula,1991 z28
Engine: 400 Vortec Hsr,496bbc
Transmission: TKO600,TH400
Axle/Gears: 9"4.10, 9"3.73
Re: It always started fine... untill today.

im betting fuel pump...

have you checked all fuses?

do you hear the pump prime when you turn the key?
Reply
Old Sep 11, 2010 | 04:06 PM
  #12  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

I can smell gas when its turning over though. And I checked most of the fuses, which one would this problem be from?
Reply
Old Sep 11, 2010 | 05:16 PM
  #13  
regal301's Avatar
Member
 
Joined: Sep 2007
Posts: 449
Likes: 0
From: RHODE ISLAND
Car: 1988 iroc-z
Engine: 350 Vortec TPI
Transmission: 700r4
Axle/Gears: 3.73 4th gen Torsen 10bolt
Re: It always started fine... untill today.

you need to find out what your missing,fuel or spark.

it takes fuel,spark and compression to run a motor.

i doubt it lost compression.try a shot of starting fluid so you can eliminate the fuel system.then post some results.
Reply
Old Sep 11, 2010 | 08:12 PM
  #14  
james94's Avatar
Thread Starter
Member
 
Joined: Jul 2010
Posts: 174
Likes: 0
From: Newmarket Ontario Canada
Car: 1990 IROC
Engine: Tree Fiddy
Transmission: 700r4
Axle/Gears: 3.23
Re: It always started fine... untill today.

Would the distributer be a cause? when I took off the cap the contacts were dirty and the rotor was as well. Could I need a new distributer?
Also which fuse would be responsible for this, if any
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Orr89RocZ
Power Adders
206
Apr 25, 2016 08:28 AM
apo_bailon15
TBI
4
Mar 28, 2016 05:20 AM
TheExaminer
Cooling
26
Aug 26, 2015 04:59 PM
Ginamariegault
Brakes
1
Aug 10, 2015 08:33 AM




All times are GMT -5. The time now is 07:30 PM.