About 6 months ago would not start. Garage replaced spark plugs and it started. I removed the spark plugs prior to the garage and didn't think they were too bad. Don't know if the 2 non starts are connected. No codes or drivibility issues before this (6 months ago)non start.
No drivability issues or codes before this non start.
Following your no start instructions:
-All fuses checked and OK.
-New spark plugs
Still no start.
-Check spark across a 0.25" gap. All OK.
-Checked timing: with slot in crank pully aligned with mark on timing cover, cam marks were both at 12 o'clock and piston #1 at TDC.
-Timing during starting based on the crank pully slot was 23 degrees BTC using a timing light.
-Starter running at 226RPM from scan tool.
-Fuel injector electronics tested OK with noids.
-Fuel pressure measured at 46 psi, fuel flowed through relief hose with no air.
-EGR valve closed.
-Long term fuel trim is -11% from scan tool (last time car ran).
-Air and coolant temps within 3 deg. C from scan tool.
-Dry compression low on cyclinders 1 & 4. All cylinders improved wet. Did not do as many cranks as the FSM suggests. Can redo?
-Leakdown test was interesting. All cylinders in the red. Cylinder 1, air coming out of #2 and #3 cylinders and exhaust.
Next thing on the list is to open up the exhaust. Any advice on getting the nuts off the manifold/flexible pipe would be appreciated - oxy/acc torch?
I would have thought low compression or valve issues would have generated codes and had drivebility issues?
Help!
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Tuesday, May 15th, 2012 AT 3:18 AM
