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I have been having some idling problems with my truck. With the base fuel pressure set to 40 psi it idles rough and the tach hunts. If I turn down the fp to 36 psi it idles fine. Using turbo link I get the following BLM data: 36 psi base, 128 at idle and 144-150 under throttle. 40 psi base, 112...

Which port is the vent on the boost control solenoid?

I have been chasing this problem with my truck for quite some time now. My truck idles fine in park when the engine is first started. After driving it a couple of miles it idles fine in drive but if you shift it into park/neutral it will begin to surge. Put it back into drive and it idles fine...

Are the rims the same? I see on the sytyauthority web site that there are different part numbers for the front rims.

I am still chasing my idling problem. My truck seems to idle fine in drive but in park it surges. I was watching the injector pulse width when it starts to surge and it sometimes jumps from 1.2ms to 30ms. I shut the engine off key in run and watch the pulse width and it will do the same thing...

My truck idles very rough and intermittently misfires at idle. After reading several posts about vacuum leaks and ignition problems I have tried the following: 1. Cap/rotor, no change 2. New wires and plugs, no change 3. Used the bike tube trick to find several vacuum leaks and replaced all of...

I tested my fuel pressure according to the GM shop manual. Key on fuel pressure rises to 45 PSI and then immeadiatly drops to zero when the pump shuts off. I start the pump with a jumper and pinch the supply line off then stop the pump pressure drops to zero. Repeat the test with pinching the...

What should I see for MAP voltage with engine off and key in run position? The reason I ask is the service manual says 3.8-5.5V but mine reads 2.38V. So I need to know what other people heve seen.

What color is the dash supposed to be and does it have a color code?

Why do some SyTy related sites list the plug gap as .035 when the service manual says .045? Is the manual incorrect or is the .035 gap for modified engines? The Syclone I bought is apparently all stock. I am getting ready to give it a tune up and I am not sure what to gap the plugs at.

Mt truck is missing the spare tire, what size spare tire and what type of rim did these trucks come with? Can I go to the junk yard and get a spare rim from an S-10 or Sonoma?

Looking for a front lisence plate bracket for my syclone, anyone know if they make/made one?

Anyone have any ideas on where to get a replacement for a Sy.

What size is the fuel tank on a Syclone??

Anyone know where to get new instrument panel lamps? I went to my local auto parts store today and bought the correct bulbs, but I later found out that the bulbs in my I/P don't separate from the bases!!!

Did Syclones come from the factory with trans oil coolers? I have a small tans fluid leak because the lines on my truck were routed too close to the exhaust crossover pipe. Anyone else have this problem?

Hi, I just bought one of these trucks and had a question about the cladding. Does anyone have any close up pictures of the cladding on their truck? My cladding alignment with the front bumper looks off. Also there is a space between the fender cladding and the fender towards the font of the...