Just bought the truck has been running fine then it immediately ran hot after about five miles and started spitting and sputtering so we put it n neutral and coasted as far as we could since the house wasnt far but then it stalled out so we pulled off checked under the hood and found that there was water in the oil?
Re: Water in the oil? 96 Chevy Silverado 350 vortec?
Since its water in the oil it could be that the intake is leaking and it is internally and when they do this it can cause the lifters to bleed down from the coolant getting into them and that could be the cause of the stuttering and sputtering
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My 2003 chevy Silverado V6 truck turns over but will not start..it acts lik. ... iS IT HARD TO REMOVE AN OIL PAN ON A 4.3 VORTEC S-10 PICK UP TRUCK ...silverado 1500 ext. cab. my problem is while driving on the highway my truck ... mytruck then took off the terminal to see if the alternator was work and now i have no .
next step is to remove the intake, you are on the right track, worse i ever found was a cracke block, but that was in a 61 t-bird which was repaired with jb weld ten yrs ago and still holding, but the intake gasket sounds right
The freeze plug you replaced was due to rust or was it pushed out by freezing temperature? These plugs are not designed to protect the engine block from cracking during freezing temperatures, they are there to remove the sand from the block after casting it. I would drain your system completely and flush out the radiator thouroughly and fill with plain water, then run the engine and see if oil gets in the water, if it does and the plug was out due to freeze, then your block is probably cracked, although you could just have a head gasket leak. Oil pressure (40psi) is higher then water pressure (17psi), so getting oil in the water is always more prominent than the other way around. Flush out the system and let me know if oil returns to the water, hope this helps
Hello, it seems that you have intake gaskets leaking. I'll bet you have the vortec 350. This is a common problem with the vortec, Gm uses plastic intake gaskets and they blow out over time usually to the externally but yours is internally.It is a pretty easy fix for the average mechanic to do. Thank you
Had the same problem with my '96 Silverado with 350 Vortec. The truck would only crank. It would start if fuel was poured down the throttle body. Could not hear the fuel pump hum. Fuse was good, but could not hear relay click. Relay was good, Did some electrical wiring trouble shooting. Turned out that one of the connectors that clasp onto one of the pins of the fuel pump relay wasn't making a good connection, too loose. I just stuck a peice of wire into the connector and pushed the relay back in. Relay clicked, Truck Started. It's been more than 4 yrs. since I made that McGuyver fix. Still firing.