'91 hot starts
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From: Huntley Il
'91 hot starts
When my vette is cold, it starts up no problem. In fact, it usually gives me no difficulty in starting. However, if I have been driving to where the engine temp gets really hot and then I stop and park the car, it usually will not start so quickly when I get back in. Then, when I drive it after and come to a stop light, it will idol so low that the engine dies. I have tried to explain the problem as best as possible. Any ideas? Thanks. 
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From: Huntley Il
Originally Posted by scorp508
It sounds like a classic case of leaky injectors, but there are other possibilities. Do you have a fuel pressure gauge?
Team Owner
Joined: Mar 2000
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From: Boston, MA
Not really. If you buy a fuel pressure gauge at some place like autozone that fits the TPI fuel rail you can diagnose it yourself. They should be less than $30 and have about a 3' hose that connects to the fuel rail schreader valve.
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From: Huntley Il
Originally Posted by mikey whipreck
does it crank but not fire?
or does it struggle to even crank?
if the first is the case, I agree with scorp about the injectors...
if the second is the case, check your charging system, and starter...
or does it struggle to even crank?
if the first is the case, I agree with scorp about the injectors...
if the second is the case, check your charging system, and starter...
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From: Huntley Il
Originally Posted by mikey whipreck
You ever try and start something with a flooded carbeurator (sp)?
You can't
leaking injectors cause a similar situation...
You can't
leaking injectors cause a similar situation...
Team Owner
Joined: Mar 2000
Posts: 83,383
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From: Boston, MA
Ok here is something to try next time until you get a FP gauge. Hold the throttle to the floor 100% and then try starting the car. This will put the car into a flood clearing mode and turn the injectors off from injecting any fuel into the cylinders while cranking. If you find the car starts easier this way then it is another point for leaky injectors.
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From: Huntley Il
Originally Posted by scorp508
Ok here is something to try next time until you get a FP gauge. Hold the throttle to the floor 100% and then try starting the car. This will put the car into a flood clearing mode and turn the injectors off from injecting any fuel into the cylinders while cranking. If you find the car starts easier this way then it is another point for leaky injectors.
