Plug wires I have a 1996 Chevy Truck with a Vortec 350 5.7 engine. i NEED A DIAGRAM OF THE engine and cap

Question edited for a fraction more clarity, but 1996 is the year, 350 is the CC, and Vortec (after I Edited from 'vertic') is the engine buzz word for a dozen engines in the Ford range.

All questions on Fixya need 'year make model' as first 3 words.

The radiator cap is not relevant in this scenario, and also you mention 'sensor', the vehicle probably has 20!

The milky white mayonnaise is only visible after a run. After the engine cools, it separates back out. You need some professional diagnostic pressure testing, but on a 1996, it is probably going to be bad news.

I have a 1977 Chevy Silverado with a 350 put new spark plugs & wire . Did a basic tune up but it still uses $20 a day in gas what can make it do this

the cap should be marked on a vortec 4.3 liter. the left side of engine is from front #1 #3 and #5 cylinders. the right side from front is #2 #4 and #6.

firing order for 5.7 v8 is 1-8-4-3-6-5-7-2 mostly all of the chevy v8s are the same firing order. the rotor button in distributer turns clockwise, the cylinder numbers are 1-3-5-7 on drivers side, 2-4-6-8 is on passengers side. To get started get your distrutor cap[new one] look on the top you will see a #1that's where you begin you must know if if rotates clockwise or counter clockwise start in that direction then follow the firing order and cylinder line up. good-day!! if cap is not marked, just pull out #1 plug, put a straw or similar in plug hole on top of piston. turn engine over by crank in front of vehicle with a wrench, when the piston comes to the very top just before it starts going down. this is tdc. and rotor button should be pointing to #1 wire on dist, cap. follow from there. good-day !!

it could be bad compression in the cylenders or wrong ignition wire placement

Yep that is what the code is for. Make sure the passage is clean after you pull it off.

unplug distributor! find #1 cylinder, take out spark plug,placr finger over spark plug hole,bump starter until compression blows finger from spark plug hole,align mark on harmonic balancer with 0 mark on timing cover. engine is on compression stroke.install distributor with rotor contact pointing toward #1 wire location on distributor cap. install plug. install wire. engine will start.

i would try to flush the cooling system completely
if I had to guess someone put stop leak in it when the freeze plug started leaking
also check the oil to make sure there is no water in the oil

you need the firing order?? it is 1, 6, 5, 4, 3, 2 clockwise. Number one on cap is forward position, or 6 o'clock position, just left of the hold down bolt.