View Poll Results: Beautiful but aging 6-speed C4(92') Sell or Rebuild?
Sell
0
0%
Rebuild
0
0%
Fix only what breaks
2
100.00%
Drive it into the ground
0
0%
Voters: 2. You may not vote on this poll
Hard Start 92' LT1
Thread Starter
6th Gear
Joined: Oct 2007
Posts: 6
Likes: 0
Hard Start 92' LT1
Thank you for the advice MikeC4. 
Hello all,
OK, my Vette is acting up and I can't figure out why she is so temperamental!
I was driving to work and the car just lost all power on the road. She didn't stall but couldn't even get me up a small hill. Parked it. waited a half hour and managed to get it to the ASE Mechanic I trust. From that point we replaced the plugs, checked all wires, changed both O2 sensors, fuel pump and strainer (we didn't need to replace the wiring harness though) We also changed the fuel filter. While waiting for some of those parts we ran the injectors through the sonic cleaner about 6 times, and replaced the little injector seals. Two of the injectors are a little weak. So we marked them and put them up front for easy replacement, pocketbook permitting. Once that was all finished I started it up. Hard Start! I let it go for a few days to see if it would go away but never did.
Came back to the shop where we spent about 8 hrs diagnosing. Using the fuel pressure gauge, he checked the pressure with key on and engine off, engine running, engine after turning off, etc.. We hooked up the diag machine, no code. All fuel pressures are good, like 40-45 psi. Fuel pump activates when key is turned on before starting. We fixed a small vacum leak. He checked the Fuel pressure regulator and said that's not it. No smoke but there is a fuel smell that came into the cockpit and was evident by the engine as well. after starting which ceases after about 20 sec or so. We re-tightened the fuel filter because it WAS leaking and the fuel smell stopped, but the Hard start continued. We checked the rest of the fuel system for leaks. None. In the last few days the fuel smell has returned. I'll go back to check on the fuel filter this week. Another thing the SYS warning light flashes every so often.
When I try to start the car. I even turn the ignition to the on position and wait for 15 seconds then start and still cranks but doesn't start unless I keep cranking. giving some gas while cranking seems to be helpful if not necessary. Usually it will start on the 2nd or 3rd 2-5 second cranking session. After it's been running for awhile and I turn it off I can start it right back up, but if I go into the Pizzeria of Cafe', I gotta crank on it again for 3-5 seconds before she'll start up again.
Please HELP a War Vet with his Corvette!!
Hello all,
OK, my Vette is acting up and I can't figure out why she is so temperamental!
I was driving to work and the car just lost all power on the road. She didn't stall but couldn't even get me up a small hill. Parked it. waited a half hour and managed to get it to the ASE Mechanic I trust. From that point we replaced the plugs, checked all wires, changed both O2 sensors, fuel pump and strainer (we didn't need to replace the wiring harness though) We also changed the fuel filter. While waiting for some of those parts we ran the injectors through the sonic cleaner about 6 times, and replaced the little injector seals. Two of the injectors are a little weak. So we marked them and put them up front for easy replacement, pocketbook permitting. Once that was all finished I started it up. Hard Start! I let it go for a few days to see if it would go away but never did.
Came back to the shop where we spent about 8 hrs diagnosing. Using the fuel pressure gauge, he checked the pressure with key on and engine off, engine running, engine after turning off, etc.. We hooked up the diag machine, no code. All fuel pressures are good, like 40-45 psi. Fuel pump activates when key is turned on before starting. We fixed a small vacum leak. He checked the Fuel pressure regulator and said that's not it. No smoke but there is a fuel smell that came into the cockpit and was evident by the engine as well. after starting which ceases after about 20 sec or so. We re-tightened the fuel filter because it WAS leaking and the fuel smell stopped, but the Hard start continued. We checked the rest of the fuel system for leaks. None. In the last few days the fuel smell has returned. I'll go back to check on the fuel filter this week. Another thing the SYS warning light flashes every so often.
When I try to start the car. I even turn the ignition to the on position and wait for 15 seconds then start and still cranks but doesn't start unless I keep cranking. giving some gas while cranking seems to be helpful if not necessary. Usually it will start on the 2nd or 3rd 2-5 second cranking session. After it's been running for awhile and I turn it off I can start it right back up, but if I go into the Pizzeria of Cafe', I gotta crank on it again for 3-5 seconds before she'll start up again.
Please HELP a War Vet with his Corvette!!
