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it has a chevy 4.3 vortec will not fire on number one and shakes really bad i put a new fuel pump new spider injector new plugs wires cap rotor new intake gasket upper and lower and still same and it burns rotor leave a black stripe if run at driving speed in park stats to shakes worst and worst stumbles then dies then it will not start number one gets spark and fuel
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Any engine codes stored? sounds like your ignition system has a
problem. If I understood correctly your rotor is burning?http://www.ericthecarguy.com/faq/solving-automotive-no-start-problems
http://www.ericthecarguy.com/faq/solving-automotive-performance-issues
it has a new coil and i no way to pull codes it not lessened yet yes the rotor is burning a hole it it self and its not a 98 motor i check casting number block it a 00-05 not sure how many mile are on it and when turn the steering the motor dies ever once in while and hard to start once in while and number one get spark and fuel
OK… You need to get the codes pulled, that will clue us in more…. If you can’t move it to a store, you will need to get at least a code reader and pull the codes… Diagnosis without this code is not easy, and the vehicle is telling us something is wrong…
Also, GM oil pressure sending units of that era were known for going screwy with age… Oftentimes they are easily replaced with a new one and the gauge will start working properly…. But this is not 100% you still could have a pressure problem…
-Karl
If the oil psi gauge is going crazy it could indicate a mechanical issue with the engine. I’d want to rule that out first. You might start by checking the oil pressure.
If you have fluctuating oil psi then you likely have a problem with the engine.
That can cause performance and drivability issues. If you find that then engine is bad, I’d recommend replacement over rebuilding.
Good luck and keep us posted on your progress.
OK… Cylinder 1 misfire…. No surprises there…. You have a few options to test….
Swap spark plug with other cylinder and see if the problem goes to another cylinder…also possibly the wire… (probably not likely anyway since they are new)…
Since this is a spider fuel injection system, you can’t swap fuel injectors, so sadly, that is out…
You will need to do a compression test and possibly a leak down test… You may have a mechanical issue on that cylinder…
-Karl
im thinking mechanical issue anyway so i will do compression test where do i rent a compression tester ?
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