Not sure if this is a issue with transmission or motor?

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Jan 8, 2014 | 05:22 PM
  #1  
My issue is that when I am getting on it at higher rpms it feels almost like it is starving for fuel and there are some times when I come to a stop that it dies. After a little diagnosing I figured out that it only starts doing this once it shifts into third gear at right at 3000 rpms. If I punch it from a stop it will be fine in first and second, but not third or fourth. When it gets to 3000 rpms it will bog down almost and if I let off it will be fine but if I push down on the pedal further the rpms drop to about 1000 rpms and then gets power back and goes. This became a big issue when it started doing it when I was on the interstate the other day because it is my daily driver. It does not matter how fast I am going, but if I am in third or fourth gear and it hits 3000 rpms it will have this issue. It is hard to drive a Camaro and not go over 3000 rpms.
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Jan 8, 2014 | 05:53 PM
  #2  
Re: Not sure if this is a issue with transmission or motor?
Sounds like the typical restriction in the fuel line.

What did the fuel filter look like when you changed it? Any sign of crusties or other "foreign matter"?
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Jan 8, 2014 | 11:03 PM
  #3  
Re: Not sure if this is a issue with transmission or motor?
Quote: Sounds like the typical restriction in the fuel line.

What did the fuel filter look like when you changed it? Any sign of crusties or other "foreign matter"?
It didn't seem like there was anything in it just a little bit of fuel. When I was checking the fuel filter there was a pinhole leak in the fuel hose and I was hoping that was the culprit but it did not change anything. I first though that it was a transmission problem, but I am really thinking it is fuel related at this point. I just have no idea what it could be.

I have had an issue early summer last year where when I came to a stop or slowed down real fast my car would stall and I never found a fix for that and just turned up the idle to keep it running and havn't fixed it since.

My friend said that my coolant temperature sensor could have to do with it. The only reason he said it could be is because I have put a aftermarket gauge in place and the factory plug is just hanging in the engine bay. Could this be affecting it?
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Jan 9, 2014 | 05:59 AM
  #4  
Re: Not sure if this is a issue with transmission or motor?
There shouldn't be a "fuel hose" anywhere near the filter.

The filter is in the fuel inlet nut, where the steel line screws into the carb.

What did it look like when you changed it?
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Jan 9, 2014 | 12:16 PM
  #5  
Re: Not sure if this is a issue with transmission or motor?
Its 30 years old... its perfectly possible someone may have replaced all or some of the hard line with soft line.
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Jan 9, 2014 | 07:23 PM
  #6  
Re: Not sure if this is a issue with transmission or motor?
Quote: There shouldn't be a "fuel hose" anywhere near the filter.

The filter is in the fuel inlet nut, where the steel line screws into the carb.

What did it look like when you changed it?
There is the metal line that holds the fuel filter and goes in a L shape that a hose clamp holds the hose and goes down to another metal line down against the wheel well. Is that not how it comes factory?
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Jan 9, 2014 | 07:39 PM
  #7  
Re: Not sure if this is a issue with transmission or motor?
No...

Sounds like your car has a PO alteration. Bummer.

From the factory, there's just a piece of rubber line coming from the supply line to the fuel pump inlet.

Then a piece of steel tubing from the fuel pump outlet to the carb.

The BIG nut in the front of the carb, that the fuel line screws into, has the fuel filter in it.

To change the filter, hold the BIG nut still with a 1" open-end wrench; and use a flare-nut 5/8" wrench on the fuel line nut. Then once the fuel line is free from the inlet nut, take it out, and the fuel filter is behind it.
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Jan 10, 2014 | 09:12 AM
  #8  
Re: Not sure if this is a issue with transmission or motor?
Quote: No...

Sounds like your car has a PO alteration. Bummer.

From the factory, there's just a piece of rubber line coming from the supply line to the fuel pump inlet.

Then a piece of steel tubing from the fuel pump outlet to the carb.

The BIG nut in the front of the carb, that the fuel line screws into, has the fuel filter in it.

To change the filter, hold the BIG nut still with a 1" open-end wrench; and use a flare-nut 5/8" wrench on the fuel line nut. Then once the fuel line is free from the inlet nut, take it out, and the fuel filter is behind it.
Are you talking about on cars with mechanical fuel pumps because mine has an electric pump in the fuel tank and only the z28 had it like that in 84. Or is it still suppose to be a metal line going all the way back to the pump?
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Jan 10, 2014 | 01:44 PM
  #9  
Re: Not sure if this is a issue with transmission or motor?
L69 "HO"had mechanical pump as main pump the electric boost pump was to reduce chance of vapor lock with the L69 as those ran hotter under the hood than LG4 cars due to reduced underhood ventilation with the L69 electric fan-seems not all '84 L69 had the boost pump,but a 12/83 build z28 I looked over had the electric pump.
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Jan 12, 2014 | 01:57 PM
  #10  
Re: Not sure if this is a issue with transmission or motor?
Quote: L69 "HO"had mechanical pump as main pump the electric boost pump was to reduce chance of vapor lock with the L69 as those ran hotter under the hood than LG4 cars due to reduced underhood ventilation with the L69 electric fan-seems not all '84 L69 had the boost pump,but a 12/83 build z28 I looked over had the electric pump.
So is the way mine is set up stock because I looked and there is not even a spot for a mechanical pump anywhere on the block.
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Jan 12, 2014 | 03:12 PM
  #11  
Re: Not sure if this is a issue with transmission or motor?
Quote:
So is the way mine is set up stock because I looked and there is not even a spot for a mechanical pump anywhere on the block
No.... not stock. More PO "customization" it would appear.

Blocks w/o the mech pump provision didn't appear until quite a few years later.

How bout that fuel filter in the carb inlet nut? How'd it look when you popped it out?
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Jan 14, 2014 | 10:08 PM
  #12  
Re: Not sure if this is a issue with transmission or motor?
Quote: No.... not stock. More PO "customization" it would appear.

Blocks w/o the mech pump provision didn't appear until quite a few years later.

How bout that fuel filter in the carb inlet nut? How'd it look when you popped it out?
The fuel filter looked really clean when I pulled it out, but I still replaced it just in case.
How is it that this is not stock because I went to the auto parts store and looked up the fuel pump just to see a price and for the z/28 it pulls up an in tank electric pump for my car. For the berlinetta and sport coupe it has a mechanical, but not z/28.
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