Power steering issues, gm box- cummins pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

matt_field · 10-01-2015, 10:41 PM

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

matt_field · 10-02-2015, 08:48 PM

Got it fixed, tons of air in system. Took alot to bleed out compared to other cars I've done

COS399 · 10-03-2015, 01:30 AM

Glad you got it fixed. I had the same problem with mine.

**Dieselwrencher** · 10-05-2015, 08:33 PM

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.

10-01-2015, 10:41 PM	#1
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	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 Attached Images __________________ 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

10-02-2015, 08:48 PM	#2
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	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 __________________ 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

10-03-2015, 01:30 AM	#3
COS399 Registered User Join Date: Dec 2013 Location: Northern, MT Posts: 569	Re: Power steering issues, gm box- cummins pump Glad you got it fixed. I had the same problem with mine. __________________ 1987 GMC R2500 SC 454 T400 1988 Chevy R30 CC DRW 12 valve Cummins NV4500 GearVendors

10-05-2015, 08:33 PM	#4
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	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. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*



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