V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

getting my first v6 2.8 HELPPPP

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Old Mar 1, 2009 | 11:08 AM
  #101  
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by chevyracingrox
did you hold it upside down when you cleaned it out? its very important. it's also very important that you wait until its completely dry before using it again. more likely that it's the IAC, was it running alright before you cleaned it?

it was already running like sh*t before i did it, and yes i cleaned it right
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Old Mar 1, 2009 | 11:14 AM
  #102  
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by K-slice
O2 sensors should be replaced regularly any way. They dont stay good for very long.

This sounds like the same thing that was wrong with my car when I first bought it. I did everything you mentioned to try and fix it but nothing worked. Finally I took it to a shop, who told me my fuel injectors were shorting out and buring my PCM. I got new injectors and a reman. PCM, fixed the problem right up. I hope this isn't whats wrong with yours since this cost a good abount of money to fix...
so could the o2 be da problem?
do i need to get a new one and my car will be working fine again?

and how would i no if its my injectors
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Old Mar 1, 2009 | 11:24 AM
  #103  
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From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

o2 could be it, worth a try. finding if it's the injectors shorting out is pretty easy. open the hood at night, or in a dark garage, spray water around your fuel injector connectors start the engine and see if you get a light show. if its arcing around they're shorting out.
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Old Mar 1, 2009 | 12:26 PM
  #104  
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by chevyracingrox
o2 could be it, worth a try. finding if it's the injectors shorting out is pretty easy. open the hood at night, or in a dark garage, spray water around your fuel injector connectors start the engine and see if you get a light show. if its arcing around they're shorting out.

do i have to take off the intake manifold or can i do this with it on?

and if so could u take one of the pics and tell me where to pour the water
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Old Mar 1, 2009 | 12:40 PM
  #105  
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From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

no just leave the manifold on. spray some water from a spray bottle or something under the top of the intake manifold, just so there's moisture where the fuel injectors plug in. water is acting to help the electricity short the injectors, if they aren't being shorted out, nothing will happen. it might do this without water being added, if you wanted to try that to, just turn off the lights in the garage and look for lightning while the car is running.
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Old Mar 1, 2009 | 03:08 PM
  #106  
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

ok i just came back from gettin my car looked at

and its my fuel regualtor(sp?)
so i gotta get the parts for that
then labor
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Old Mar 1, 2009 | 03:28 PM
  #107  
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From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

you have a couple of options. you can get a stock fuel rail that already has one from a jy, you might be able to order it from a dealer (but might not either, it was considered a part of the fuel rail and not serviced if defective the rail was replaced), or get an aftermarket adjustable one. not too bad to install, if your feeling brave.
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Old Mar 1, 2009 | 03:39 PM
  #108  
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by chevyracingrox
you have a couple of options. you can get a stock fuel rail that already has one from a jy, you might be able to order it from a dealer (but might not either, it was considered a part of the fuel rail and not serviced if defective the rail was replaced), or get an aftermarket adjustable one. not too bad to install, if your feeling brave.

i dont like buying over the phone or offline for that i spent that money then i want it now

but is a hard to do cuz it would save me 50 dollars
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Old Mar 1, 2009 | 04:04 PM
  #109  
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From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

its not too bad. you have to remove the upper plenum (manifold) and the fuel rail. you might be able to get a fuel rail with injectors for cheap, but if you don't its no big deal. I'll post up a picture showing you what to disconnect to get the plenum off. at first it seems like a lot, but once you do it about a hundred times, its really simple.
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Old Mar 1, 2009 | 11:20 PM
  #110  
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From: Traverse City, MI
Car: 91' Firebird
Engine: 3.1 LH0 V6
Transmission: Auto 700R4
Axle/Gears: 3.23 limited slip
Re: getting my first v6 2.8 HELPPPP

Hey! That was wrong with my car too, with all the other problem I mentioned earlier. They replaced the fuel pressure regulator to fix that problem.
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Old Mar 2, 2009 | 08:22 AM
  #111  
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by chevyracingrox
its not too bad. you have to remove the upper plenum (manifold) and the fuel rail. you might be able to get a fuel rail with injectors for cheap, but if you don't its no big deal. I'll post up a picture showing you what to disconnect to get the plenum off. at first it seems like a lot, but once you do it about a hundred times, its really simple.

pics please?
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Old Mar 2, 2009 | 08:24 AM
  #112  
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Joined: Jan 2009
Posts: 507
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by K-slice
Hey! That was wrong with my car too, with all the other problem I mentioned earlier. They replaced the fuel pressure regulator to fix that problem.
so did u really need to replace a fuel injector, those things are expensive
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Old Mar 2, 2009 | 08:50 AM
  #113  
chevyracingrox's Avatar
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Joined: Nov 2007
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From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

got it modded. you'll have to remove the EGR tube also, but its pretty simple. take off the vacuum lines on the back, unbolt those 5 bolts on each side, unbolt the throttle bracket, 2 bolts on the front of the throttle body, take off the throttle cable attatchment on the throttle body. Its a clip, you can just press it down and it'll come off, I'm sure you'll figure it out. lift that off and the fuel rail is held in by 2 bolts. press on the screader valve to relieve pressure. disconnect the fuel lines and use a screwdriver to pry the rail and injectors out little by little.
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Old Mar 2, 2009 | 08:54 AM
  #114  
chevyracingrox's Avatar
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Joined: Nov 2007
Posts: 1,092
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From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

forgot to upload the pic
Attached Thumbnails getting my first v6 2.8 HELPPPP-upper-plenum.jpg  
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Old Mar 2, 2009 | 09:49 AM
  #115  
jaybdaboat's Avatar
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Joined: Jan 2009
Posts: 507
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by chevyracingrox
got it modded. you'll have to remove the EGR tube also, but its pretty simple. take off the vacuum lines on the back, unbolt those 5 bolts on each side, unbolt the throttle bracket, 2 bolts on the front of the throttle body, take off the throttle cable attatchment on the throttle body. Its a clip, you can just press it down and it'll come off, I'm sure you'll figure it out. lift that off and the fuel rail is held in by 2 bolts. press on the screader valve to relieve pressure. disconnect the fuel lines and use a screwdriver to pry the rail and injectors out little by little.

i need to take out the fuel lines and injectors? to remove and insert the new fuel pressure regulator?
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Old Mar 2, 2009 | 10:52 AM
  #116  
chevyracingrox's Avatar
Supreme Member
 
Joined: Nov 2007
Posts: 1,092
Likes: 1
From: IL
Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: getting my first v6 2.8 HELPPPP

just unhook the fuel lines, the injectors will just come out with the fuel rail. you don't have to take out the injectors unless its to put them into the new fuel rail.
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Old Mar 3, 2009 | 02:43 PM
  #117  
jaybdaboat's Avatar
Thread Starter
Senior Member
 
Joined: Jan 2009
Posts: 507
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Re: getting my first v6 2.8 HELPPPP

Originally Posted by chevyracingrox
got it modded. you'll have to remove the EGR tube also, but its pretty simple. take off the vacuum lines on the back, unbolt those 5 bolts on each side, unbolt the throttle bracket, 2 bolts on the front of the throttle body, take off the throttle cable attatchment on the throttle body. Its a clip, you can just press it down and it'll come off, I'm sure you'll figure it out. lift that off and the fuel rail is held in by 2 bolts. press on the screader valve to relieve pressure. disconnect the fuel lines and use a screwdriver to pry the rail and injectors out little by little.
ok i went to take off the 5 bolts and there rusted shut, and they stripped all the threads on my socket wrench, so now i have no tools and already bought the part, so i guess early in the morning imma be at autozone trying to fix my car with thier loaner parts haha
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