91 ZR-1 Cutting Out Under Load - ZR-1 Net Registry Forums

GregCrowe · 05-14-2006

Haven't had a problem with this car in years until today. The car had been sitting for awhile so I decided it was time to break it out of the garage and take it for a spin. We made a 10 mile trip and the car was perfect, even while spanking a Mustang on the highway. After sitting for 30 minutes, we hopped back in and the car immediately had a problem.

At idle, it's perfect, at highway cruise, it's perfect. At any kind of load situation, it has a stuttering, cutting out problem. The heavier the load, the worse the problem is. If you put the car in 5th gear and bog it down at like 20 mph, the car literally shakes.

I'm almost positive it's not a mechanical engine problem. It seems electrical or sensor/vacuum related. The only problem I have ever had with this car is a little 5 cent clip falling off the arm of one of the secondary intake flap solonoids. When that happened, it was just down on power.

Any ideas? I'm dreading having to take this car into the Chevy dealership with a blank check.

Edit: Forgot to add, it makes no difference whether the secondary systems are engaged with the key. Either way, it has the stuttering problem.

05-14-2006	#1
GregCrowe Join Date: Sep 2004 Location: Oklahoma Posts: 111	91 ZR-1 Cutting Out Under Load Haven't had a problem with this car in years until today. The car had been sitting for awhile so I decided it was time to break it out of the garage and take it for a spin. We made a 10 mile trip and the car was perfect, even while spanking a Mustang on the highway. After sitting for 30 minutes, we hopped back in and the car immediately had a problem. At idle, it's perfect, at highway cruise, it's perfect. At any kind of load situation, it has a stuttering, cutting out problem. The heavier the load, the worse the problem is. If you put the car in 5th gear and bog it down at like 20 mph, the car literally shakes. I'm almost positive it's not a mechanical engine problem. It seems electrical or sensor/vacuum related. The only problem I have ever had with this car is a little 5 cent clip falling off the arm of one of the secondary intake flap solonoids. When that happened, it was just down on power. Any ideas? I'm dreading having to take this car into the Chevy dealership with a blank check. Edit: Forgot to add, it makes no difference whether the secondary systems are engaged with the key. Either way, it has the stuttering problem. Last edited by GregCrowe; 05-15-2006 at 02:27 AM.