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Old 10-01-2015, 10:41 PM   #1
matt_field
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Power steering issues, gm box- cummins pump

I'm having issues getting my powersteering to work. At idle I have some chatters and kinda works. When bringing truck off idle ps is gone. I used the 72 gm box and the 91 dodge pump. I adapted the two with braided line and an fittings. I think it was -6 for ps pressure (braided with plastic liner)

Do you think the line is to small? Both trucks worked great before tear down.

Matt
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Old 10-02-2015, 08:48 PM   #2
matt_field
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Re: Power steering issues, gm box- cummins pump

Got it fixed, tons of air in system. Took alot to bleed out compared to other cars I've done
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1971 k5 blazer 80k mike survivor
1972 3/4 ton 4wd Cummins 12v
1967 swb 2wd 427bbc
1968 4wd shortbox
1971 Cheyenne swb k10 unrestored
1971 Cheyenne super 40k 402bb survivor
1967 Chevy k10 (first truck)
1968 L78 camaro survivor 18k miles
1969 z28 survivor 60k miles
1969 z28 survivor 39k miles
1969 z28 rs survivor 80k miles
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Old 10-03-2015, 01:30 AM   #3
COS399
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Re: Power steering issues, gm box- cummins pump

Glad you got it fixed. I had the same problem with mine.
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Old 10-05-2015, 08:33 PM   #4
Dieselwrencher
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Re: Power steering issues, gm box- cummins pump

I've had a tough time gettign a couple trucks bled out after a full build before. It seems jacking the front axle up and turning the wheel swith no weight on it helps get the system moving. Sometimes it takes cracking the pressure line at the steering box.
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