Hello. My truck has an idle problem. It runs great as long as its moving. Once you stop it starts to surge between 500 and 1000 RPMs. A few minutes of this and it stalls. It starts right back up though. The check engine light has been on for about 2 years now. At first test, it said that it needed a new gas cap. I replaced that. Then it showed that it needed a Crankshaft position sensor. I replaced that. Now it doesn't show any trouble codes yet has been idleing worse and worse. All gauges read good. I just had to replace the thermostat since it was overheating. It has plenty of power at all speeds but will not idle properly. Is this a problem with a sensor? Could it be a faulty ECU?
Nov 6, 2008 at 1:38 AM
