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Step on pedal - No power?

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This is becoming quite the head scratcher. What kind of carb are you running?

Adam

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i will bet you dont have a place to tear the front of your engine apart. and this time of year the front yard sucks. if your ecm doesnt show anything is wrong, how do you know your ecm isnt the problem in the first place? sounds like you need a mechanics advice who is there to have a first hand look at what you have. just a though.

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If the timing chain has jumped, compression will not be within specs. If you want to check for chain looseness, just pull the fuel pump out and check it that way. This really sounds like a fuel delivery or vacuum leak problem. Look for a vacuum leak at the power brake booster, these are sometimes easy to overlook! Good luck and let us know, Tim <img src="http://www.aaca.org/ubbthreads/images/graemlins/wink.gif" alt="" />

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I almost forgot to let you know what the problem turned out to be.

After rechecking all the obvious possabilities a second and third time.

(EGR, manifold leak, finally changed ALL vacuum lines, electrical connections and wiring, entire ignition system, fuel pump, gas filter, gas line, gas cap)

Rebuilt carb twice in case I forgot something the first time. Nothing was solving the problem.

My dad finally stopped by to take a look.(He's a car guy as long as I remember)

I start the car, it runs for about 1 minute and stalls. He looks over the hood, says I need a MC solenoid - costs about $70. Just Like That!

Picked one up the next morning, changed it that evening. Everything is running fine.

Now! I checked both the MCS and the TPS twice with the multitester and dwellmeter and they both checked out OK.

When I called him that night, I asked how he knew.

He told me that when the engine stalled he didn't hear the MCS clicking, then it started clicking, then it stopped. That's how he knew.

I Hate When He Does That!! But I'm glad he does.

And I want to thank everyone who tried to help.

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"MC" = mixture control solenoid; it takes the place of the old power piston I mentioned that could be stuck in the "down" or "economy" position, resulting in no power resulting from no mixture enrichment when needed for extra power; basically, the computer pulses or cycles the metering rods up and down from commands from the ECM to deliver the correct mixture for the operating conditions at that particular time (i.e., idle, cruise, power, WOT). Not the previous "analog" (if you could call it that) system where the power piston was compressed against a spring by manifold vacuum to do basically the same thing.

When you took the carb apart, there most probably could have been some small little circles of what might look like orange-red silicone in the bottom of the float bowl. When those appear, it's the mixture control solenoid that they came out of and failure is imminent or has already happened. Don't feel too bad, though, as not everyone remembers those solenoids are supposed to make a little noise.

Glad you got it figured out and with everything else that got "attended to", things should run pretty good for a good while into the future without further maintenance.

NTX5467

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Thanks NTX5467, Those computer fuel problems are what keeps Holley Carburetor in business I guess. Then, all you have to do is kill the "check engine" light, the longest lasting light bulb in the industry. Wayne

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