Replaced Oil Pump, now no pressure???

Printable Version

Dodge Forum >> Dodge SUVs >> Dodge Durango >> 1st Gen Durango >> Replaced Oil Pump, now no pressure???

Page: [1]

Login Message << Older Topic   Newer Topic >>

Replaced Oil Pump, now no pressure??? - 4/28/2008 8:30:44 AM    vandentr   Posts: 4 Joined: 12/10/2007 Status: offline Ok, 1999 5.2 - 318, 175,000 miles Initial Issue: Rear Main Seal & Oil Pan Gasket leaking Steps taken: 1) Removed oil pan - This job was UNREAL! I'd sure like to know what the most efficient way to do this is on the '99 4WD Durango's? Had to drop the front differential, drop the steering rack, pry "engine-to-tranny" mounting plate (drivers side) out of the way to get at pan bolts and for the pan to drop. Thank the Lord for air tools!!!! 2) Removed oil pump - No problems with this 3) Removed rear cap - No problems with this 4) Replaced rear main seal - No problems with this 5) Torqued cap to 85ft/lbs 6) Primed & Installed brand new oil pump w/ paper gasket (reused pickup tube after thorough cleaning*) 7) RTV'd new perma-seal pan gasket to block. 8) Installed the cleaned up oil pan 9) Bolted everything back together - PITA!!! 10) Added new oil. Now, when we started it up, the dashboard pressure guage reads dead zero - even after 30 seconds. I've NEVER had a problem with oil pressure. Shut it down, restart - same thing. Shut it down, restart, this time we rev the engine a bit - still nothing. Oddly, no valve ticking, no knocking, sounds like normal! Does ANYBODY have an idea about where to start with this one? * The only thing I am concerned about is the tightness of the picup tube. I could easily swing it back and forth as it sat bolted to the cap prior to installing the pan. Is this too lose? Could that cause zero pressure? Does ANYBODY have an idea about where to start with this one? I am so frustrated about the potential necessity of pulling the pan! Thanks! TVB Post #: 1

RE: Replaced Oil Pump, now no pressure??? - 5/1/2008 7:38:34 PM    n8ech   Posts: 503 Joined: 11/21/2006 Status: offline TVB: As you found out, getting the oil pan off on one of these is no picnic.   I have never done a Dodge oil pump, but all the ones I have done had a very snug fit for the pickup. Hopefully the pickup did not come off as you reinstalled the pan. When you primed the pump, did you use oil or vaseline?  I am sure that either one will do, but the vaseline won't run out like the oil will. In any case, I think before you pull the pan back off, I would get a mechanical gauge on the engine to confirm that you have no pressure. You also might consider pulling the distributor and attempting to prime the pump using an electric drill with the appropriate adapter. There are not too many things that can be wrong. Hopefully it is an easy remedy that does not involve the pan.                                                                 Don _____________________________ 2001 Dark Garnet Pearl Durango SLT+ 4.7L AWD w/ 3.55 gears (mine) 2005 Linen Gold Pearl DGC 3.8L (hers) (in reply to vandentr) Post #: 2

RE: Replaced Oil Pump, now no pressure??? - 5/2/2008 4:05:41 AM    vandentr   Posts: 4 Joined: 12/10/2007 Status: offline Don, Thanks for the reply. After talking to a few 'experts' I've concluded the the pickup tube just isn't tight enough. It wasn't loose enough to come off but it certainly wasn't snug either. I'm convinced that it's pulling air at the connection. I'll let ya know how it pans out this weekend! Thaks again, TVB (in reply to n8ech) Post #: 3

RE: Replaced Oil Pump, now no pressure??? - 5/2/2008 4:46:19 PM    hydrashocker Posts: 1763 Joined: 6/12/2005 Status: offline First thing, unloosen the oil filter to alow any air lock to disengage. This same thing happened to me on a Ford. With the oil pump and filter I had an air lock. Basicly, losen it to alow air or oil to spill out. Start the motor and have someone watch it. When oil comes out kill the engine. Tighten the filter then restart. If no oil is flowing try a different filter. Also you can take out the senser and cover the whole with a towel and crank it over for and look for presure. Bolt of these will require two people. I hope the pickup tube was installed correctly. It looks like it has the abillity to move. I see no gasket of way to tighten it into the pump. One time I even had to put pressure (25 lbs. pneumatic) to the crank case to prime. _____________________________ 1998 Durango, 5.9L Built Motor Bored 20 Over P&P Heads, K&N Ram Air CAI MSD Ignition, 52MM Fastman TB, Built T-Case Custom Built Trans, Air Bags Magna Flow 3" Cat Back Exhaust Too Much To List! (in reply to vandentr) Post #: 4

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds
SRT Forums
Race News

Dodge Prices

Dodge Trucks & SUVs
Ram Dakota
Durango Nitro

Dodge Cars
Avenger Intrepid
Caliber Magnum
Challenger Neon
Charger Stealth
Daytona Stratus
Dodge Viper

Featured Sponsors

Poll
Now that you've seen the 2008 Dodge Challenger SRT-8, what do you think?
	I Love It, Its Perfect
	I love the looks, but hate the transmission
	I like it, but I want the concept interior
	I like it, but I want the exact concept exterior
	Its ok, but the concept was far better
	Thanks, but I look forward to some changes on the 2009 models.
Poll Results Previous Polls

Top 10 Posters
dustyloins 21020 badstratrt 20743 midnight 17447 vipergts 14468 dodgegirl19 13072 ramfan5.9 12435 steve05ram36 11328 nickoman01 10863 drew 10116 casper 9606

New Vendors
Truxedo
Airaid
Mopar Biz
ATI ProCharger
Motor City Auto Parts
Sonic Electronix
Buy Auto Truck Accessories
Buy Car Floor Mats
Edge Products
AMSOIL - Performance Oil Technology