TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Slow to start

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Old Jul 8, 2002 | 07:04 AM
  #1  
ops32's Avatar
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From: Oklahoma City Metro
Car: 1983 25th Anny Daytona 500 T/A
Engine: Stock...inoperative... 305
Transmission: Automatic
Slow to start

Help me figure out where to start troubleshooting - '96 Chevy Pickup with 305 TBI. It used to start almost as soon as the starter engaged, but for the last several days it takes a couple of seconds of cranking to start. A couple of seconds isn't much, but it is noticably slow to start compared to before. This morning it did not start on the first attempt. I quit cranking after several seconds, reset the key and then it fired up immediately on the second try. I'm thinking fuel... any other ideas/things to look at?
Thanks,
Rob
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Old Jul 8, 2002 | 10:24 AM
  #2  
Buck268's Avatar
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From: Troy, MI, USA
That souds exaclty like my Camaro... Its not my base timing, not ignition components (for me). I have always just thought that it takes a few seconds to build the fuel pressure up or something? All I know is it will always start, so I dont really worry about it
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Old Jul 8, 2002 | 12:20 PM
  #3  
iroc22's Avatar
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From: Surrey, BC
The fuel pump and fuel filter could be bad. I know when my fuel pump was going, it was kinda sparatic on how it would start.
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Old Jul 9, 2002 | 06:48 AM
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From: Coushatta LA
I had the same problem with a 94 suburban..Replaced the in tank strainer,pump and the fuel filter and the problem was fixed.

Lonnie
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Old Jul 9, 2002 | 09:49 AM
  #5  
ops32's Avatar
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From: Oklahoma City Metro
Car: 1983 25th Anny Daytona 500 T/A
Engine: Stock...inoperative... 305
Transmission: Automatic
Thanks guys, I'll check out the suggestions!
Rob
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Old Jul 9, 2002 | 01:46 PM
  #6  
kevm14's Avatar
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From: RI
Car: 93 Caprice 9C1
Engine: L05
Transmission: 4L60
Axle/Gears: 3.42
First of all, are your sure it's a 96? If so, then it's not an L03 (305 TBI), but an L30 with CPFI (not crossfire, central port fuel injection). Rated at about 225hp, too.

But the fuel filter/pump suggestion still stands, it's just that it's an ENTIRELY different beast.

When starting cold in the morning, I know my L05 needs at least 2 seconds of cranking before it fires. If it's warm/hot, that time is vastly reduced. I think all TBI motors are the same way. My dad's L03 is the same...I think it's a function of the TBI itself, shooting fuel into a cold manifold.
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Old Jul 13, 2002 | 11:53 AM
  #7  
ops32's Avatar
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From: Oklahoma City Metro
Car: 1983 25th Anny Daytona 500 T/A
Engine: Stock...inoperative... 305
Transmission: Automatic
Ha ha! The crossfire is in my '83 T/A! I guess I should learn more about my truck. You must be correct on the CPFI. Anyway, my question is now moot as the truck wouldn't start at all and was towed to Chevy...
Now my '83 is filling in as a daily driver...
Thanks for the info,
Rob
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