[oldtimer]

Originally posted by oldtimer
I'm in the process of diagnosing a problem and I want to start with checking line pressures. Can someone give me the correct line pressures that I should see on a healthy "built" 200 4 R

I've looked through the shop manual, but I can't seem to find a
"Target" line pressure. The best info I can find is in the
T.V. CABLE SYSTEM DIAGNOSIS section where it tells me that I should be equal to or no more than 10lbs (34 kPa) higher than in park @ 1000 rpm. ( equal to or no higher than what )

It seems that I should have a target pressure to determine if there is a problem if I don't meet it .... yes ?

Any help here would be appreciated ... is there a site that I can go to for this information ?

OK guys,

Here's my line pressure readings

Minimum Maximum

PARK 105 150

REVERSE 205 270

NEUTRAL 115 195

OVERDRIVE 115 200

DRIVE 115 195

SECOND 235 230

LOW 225 250 +- +-


Point of clarification : my minimums were checked at idle (1100) and Maximums were checked at 1500 rpm ... " have I done this correctly ??"

Also I have a StageRite TB so LOW GEAR isn't just LOW GEAR and at full throttle pressure the guage was bouncing between
230 and 270. It was hard to define as it was bouncing so fast.


Is there anything in these pressure readings that would give a clue to having no 3rd gear ..... car won't shift from second at all !!

This is a freshly built trans by a professional trans guy who has built one for me before that worked well so I can only assume that he new what he was doing.

The trans gave me one run at the track with all 3 gears. Second run had no 3rd.