Okiki Olufokunbi

sorry l left out the details. 1993 CH613 with E7 electronic fuel injection pump. Well I found that the ECM is fried, and it appears that the electronic governor side of the injection pump has been messed up too.. The new ECM is not able to supply enough power to get the pump going.

Hello all, what electrical component controls tells the injector pump to speed up or slow down in order to deliver fuel into the engine. I would think it would be something like the throttle position sensor or a mechanical equivalent on an mechanical pump. I am asking because my E7 is fast revving up and down like crazy on startup, in quite a predictable manner. It ask as if one is depressing and releasing the accelerator, when no one is doing it. And it does not even respond to the accelerator when one is pressing it. So i think the electronic component that controls the injector pump speed has failed, and is cycling between its low and high output. any help will be appreciated. thanks

Thanks Fellicello122. The head gasket was more damaged the this second time around than the first time. The vehicle had the road speed sensor out and there is currently speculation that the engine overworked and generated more heat because the ECM was confused. I am not quite sure this will cause the internal leak to develop , but only because I have never heard anything like this causing a potential overheat problem. Although the dashboard temperature sensor did not see it, I think there was more localized heat on the engine block/head gasket area and I am trying to get a coolant system pressure test conducted. I will keep everyone posted on the resolution.

hello. I have a 93 ch613 with an e7 engine, and has experienced coolant losses that eventually led to hydrolocking the engine after the truck sat overnight, after coolant was added in the morning prior to starting up. This is the second time it has happened in two weeks. The driver claims that he did not experience any overheating on both occasions The first time it happened, the driver got the red light warning, and when he added coolant, the red light turned off. this continued until the truck was parked for the night, and then coolant was added in the morning prior to starting it. The engine hydrolocked and would not run until the cylinder head was removed and cleared of the coolant. After replacing the cylinder head gasket (which was thought to be the problem) the leak stopped for about 1 week. thus was without a loaded tanker then it happened again, same situation except that the tanker was full. i need some help with trying to figure out what is going on. Is it possible to have a internal head gasket leak without overheating the engine? What could cause this? If it a gasket issue, what could be causing it to fail? Are there other leak paths through which coolant can get into the cylinder? i will appreciate any help i can get. thank you

Thank you. OO

Hello I am trying to find locations online or locally (in Houston) where i can by the coolant level probe and the oil pressure switch. The engine shutdown light has been coming up on my 93 ch613, and these two switches have been found to be faulty. Any help will be appreciated Thanks OO

Hi. I got a 1993 CH613 with an e7 eletcronic engine recently, and shipped it out of the US. It has given a series of problems on its first trip there, and the latest issue is excessive continous white smoke in the exhaust. There is no reported coolant loss, so I am temporary ruling this out. The report I recieved recently was that the white smoke had become worse, which leads me to conclude it is engine related. The local mechanic is proposing a complete engine teardown and re-build, but its quite expensive. I am looking for help with items or aspects to troubleshoot prior to tearing into the engine, so we don't go blindly into the engine. Any help will be appreciated. Thanks OO