Racer X
SHO Pilot, Retired
This one has me stumped a little, I'll admit.
It started yesterday while I was on the parkway. I'd just left Manhattan traffic. 5th gear, at 60MPH or so. I'm off the gas, and when I go back on the gas, the car hesitates and then goes. I let off again, and hit it, and it did it again. By the time I get to the toll plaza, it'd stopped doing it. Later on, I had to go back into Manhattan, and that when all **** broke loose. I was at a light, and I noticed that my idle was a little high. Like 2000RPM high. When the light turned green, I edged into the gas and began letting out the clutch, and the car starts to stall? I clutch in, and it recovers and finds idle again at 1800RPM this time. I manage to get across Broadway without stalling, and this time I just hit the gas lightly. The RPM's instantly drop down to almost stalling... and then shoot up to 3000. As the idle comes down, the hesitation begins to subside, but now it's doing it again today, in so much that I tap the gas, and them RPM's drop first, and then shoot up. Tap gas, RPM drop, then RPM rise.
I tested the TPS last night, and there was just a hair of a dead spot at the beginning of the throttle plate sweep. I'm going to replace it when I get home later, but I'm not 100% convinced that this is the problem, though I'm really hoping it is.
Also, something else (whether the two are related or not remains to be seen) is that the cooling fan cycles on where it normally would, and then cycles off where it normally would... and then immeidately turns back on again. And then off, and then immediately on again. It'll continue to do this until the temp gets almost to the blue mark (just barely in Normal range), and then shut off until the needle it back at the bottom of the A where it starts all over again.
And my gas mileage took a nose dive; not something I can afford at 2.89 a gallon.
Any ideas would be appreciated. Thanks guys.
*edit*
And gals.
It started yesterday while I was on the parkway. I'd just left Manhattan traffic. 5th gear, at 60MPH or so. I'm off the gas, and when I go back on the gas, the car hesitates and then goes. I let off again, and hit it, and it did it again. By the time I get to the toll plaza, it'd stopped doing it. Later on, I had to go back into Manhattan, and that when all **** broke loose. I was at a light, and I noticed that my idle was a little high. Like 2000RPM high. When the light turned green, I edged into the gas and began letting out the clutch, and the car starts to stall? I clutch in, and it recovers and finds idle again at 1800RPM this time. I manage to get across Broadway without stalling, and this time I just hit the gas lightly. The RPM's instantly drop down to almost stalling... and then shoot up to 3000. As the idle comes down, the hesitation begins to subside, but now it's doing it again today, in so much that I tap the gas, and them RPM's drop first, and then shoot up. Tap gas, RPM drop, then RPM rise.
I tested the TPS last night, and there was just a hair of a dead spot at the beginning of the throttle plate sweep. I'm going to replace it when I get home later, but I'm not 100% convinced that this is the problem, though I'm really hoping it is.
Also, something else (whether the two are related or not remains to be seen) is that the cooling fan cycles on where it normally would, and then cycles off where it normally would... and then immeidately turns back on again. And then off, and then immediately on again. It'll continue to do this until the temp gets almost to the blue mark (just barely in Normal range), and then shut off until the needle it back at the bottom of the A where it starts all over again.
And my gas mileage took a nose dive; not something I can afford at 2.89 a gallon.
Any ideas would be appreciated. Thanks guys.
*edit*
And gals.
Anyone know if there's a bulb output at the test connector, or am I going to have to track down a scantool?
