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 | GMC Truck Forum - GMC truck talk, etc. |
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03-06-2005, 10:37 PM
| #1 |
| Junior Member Join Date: Mar 2005
Posts: 3
 | 1995 gmc ''sputtering'' I have a GMC 2500 with a 454 and it sometimes almost dies (sputters) when I start to go. I replaced the plugs, wires, distributer cap, rotor button,PCV valve, and fuel filter. After this my problem continued. I then noticed that it was taking a long time to warm up, so I changed the thermostat. It's been only a few days and it hasn't done it. My question is, could the thermostat have caused this sputtering? It looked OK but felt a little weaker than the new one. I know it could cause the truck to be slow warming but I don't feel sure that it could've been the cause of the sputtering. Any help would be appreciated. Last edited by cletus; 03-06-2005 at 10:40 PM. |
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03-07-2005, 06:32 AM
| #2 |
| Full Member Join Date: Feb 2005
Posts: 33
| the answer to your question is yes,when the engine is cold the ecm. sends a message for more fuel,thus causing more fuel,when not necessarly needed |
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03-07-2005, 11:05 PM
| #3 |
| Junior Member Join Date: Mar 2005
Posts: 3
| Thanks chevynut. I did not know that. |
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