| View single post by wh23g3g | |||||||||
| Posted: Sat Aug 28th, 2021 08:32 pm |
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wh23g3g Joined: Sun Mar 11th, 2018
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I'm doing a leak down test on my 98 2.5 because I'm having some intermittent stall issues after replacing a fuel pump twice. It seems the fuel system except for a malfunctioning cluster gauge is working correct. I got 65 PSI and pressure holds good after a shut down. Spark plug wires, coils, and plugs have exactly 30,000 miles on them. All Motorcraft parts. All PID data seems to be within specs on the MAF, TPS, IAC. No check engine light on but runs rough when started and smooths out after warm up. Low power and can't drive because of stalling. I did the compression test already and it's 180 PSI on all 4 Cylinders. I think Cylinder 3 was like 176 but the rest were exactly 180. Then I went on to the leak down test because I suspect valve problems. I know how to get #1 on TDC Compression and already it was bad at 32-35% leakage. I heard the most out of the throttle body. I checked #4 and I think I did it right too. It was 20-22%. It's kind of hard to me to find TDC for #2 and #3 because they don't seem to line up with anything on the crank pulley when compression is coming out. What's the best thing to stick in the spark plug hole to judge for TDC for #2 and #3? I'm curious to see what #3 is because I did pick up a P0303 in continuous memory but it hasn't come back.
____________________ 1998 Ford Ranger XLT 2.5 4R44E Automatic 4.10 non-limited slip, 1993 Ford Ranger XLT 2.3 M5 Manual, 3.45 non-limited slip |
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