Possible timing issue?

Hi,

Before we do anything more, scan it for diagnostic codes. This has an OBD1 system and doesn't require a scan tool to retrieve codes. All you will need is a short jumper wire or even a paper clip. Follow the directions in this link and let me know the results.

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Next, if the distributor has been reinstalled, you need to have the engine cylinder 1 at top dead center (mark on crankshaft pulley) and the distributor rotor pointing at the number 1 spark plug wire.

If you could record it cranking and upload it for me to hear, I should be able to tell if it is a timing issue. Also, let me know if you are sure the spark plug wires are routed to the proper spark plugs based on the firing order.

Let me know.

Joe

Hi,

I'm not sure why he would say cylinder 4 at TDC. When you set ignition timing, the number 1 cylinder must be at TDC on a compression stroke and the distributor rotor is pointing at the number 1 spark plug wire.

I attached a pic below. The blue lines show which spark plug wire goes to which cylinder. They must be in the order shown.

Note that the number 1 cylinder is white and, on the distributor, the cylinder 1 spark plug wire is also white. On the distributor, which is where the rotor should point when cylinder 1 is at TDC.

If you remove the cylinder 1 spark plug, cover the spark plug hole with a finger, and turn the engine slowly, you will feel when compression starts to build. At that point, you will align the timing mark on the crankshaft pulley with the TDC indicator mounted to the timing chain cover. Once aligned, confirm that the rotor is pointing to the cylinder 1 spark plug location.

Let me know if this helps or if you have questions.

Take care,

Joe

See pic below.

Hi,

If it is leaking enough, it could flood the engine. Have you checked the fuel pump pressure? They could be a failing fuel pump regulator.

Here is a link that explains how to test pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

On the fuel rail (integral) is the Schrader valve to attach to. That is near the regulator. Note there is an engine vacuum hose to it as well. Remove that hose and check to see if there is any evidence of fuel in it. Also, when you check the pressure, make sure to check how the regulator reacts. Keep in mind, the fuel pump (on the other hand) may not be producing enough pressure. That could cause it to start and then stall.

I attached the fuel pressure specifications below for you. Note that it indicates key on, engine off. Then it indicates how to test the regulator, with vacuum applied and then not applied. The engine needs to be running for this to be accurate.

Let me know if this helps.

Joe