93 Grand Cherokee-Starts then Dies
My neighbor has a 93 Grand Cherokee Laredo with the 4.0 Straight six. It will start, Idle and run great for the first 20 seconds, then sputters and lopes along, and then dies and wont start again. checked the schreader valve under the hood that that didnt have any pressure, replaced the fuel pump and fuel filter, we now get a continious run of fuel and still have the same problem. it seems that it runs great when its cold, but doesnt run for a **** when its starting to warm up. The little console says the "coolant sensor bad". Does this mean its the coolant sensor on the pump or the one in the reserve tank? Any Ideas why she wont run?