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madding intermittent hesitation 200 1988

posted by  roger on  Tue Oct 2 15:13 CST 2012
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last visit: Fri Sep 12 22:18 CST 2014
[RELATED]

You might try measuring the fuel pressure.

I saw your post about the FPR, but I don't think your test was sufficient. Your test of no fuel present indicates the diaphragm is not leaking, and your test of response to installed/removed vacuum hose indicate that it's modulating, but you don't know that it's actually maintaining the correct pressure.

My dad's '85 245 ran for a long time with him trying to track down symptoms, including occasional missing and almost stalling at traffic lights. When he actually measured the pressure, it was very high; replacing FPR fixed it for him.

Good luck!

Roger

'95 854T 258k miles
'93 945T 218k miles
'87 245 M47 299k miles <--almost rolled over!






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