1990 w150 no oil pressure
02-18-2018, 07:51 PM
Registered User
Thread Starter
Join Date: Feb 2018
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
1990 w150 no oil pressure
I have a 1990 power ram 5.2l 318 with 10k miles since the engine was rebuilt i started it up and it has completely no oil pressure so I pulled the valve cover to make sure it was a faulty sensor and still no oil pressure so I pulled the oil pan and checked the oil pump and it's still in good working condition it was replaced when the engine was rebuilt so I checked the shaft and it spins with the engine so I put it all back together with new 5 qts of oil and a new filter and still no oil pressure any ideas???
02-18-2018, 08:31 PM
Join Date: Jun 2009
Location: orangeville ontario
Posts: 8,023
have you checked with a mechanical gauge? when in doubt i always go old school. mechanical oil pressure gauges are cheap and let you see exactly what the oil pressure is doing.
02-18-2018, 08:33 PM
Registered User
Thread Starter
Join Date: Feb 2018
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
I haven' tried that but if its not getting oil too the rockers what would be the point?
02-18-2018, 09:33 PM
Join Date: Jun 2009
Location: orangeville ontario
Posts: 8,023
with a mechanical gauge you would see if the engine is building oil pressure or not
02-18-2018, 11:32 PM
Registered User
Thread Starter
Join Date: Feb 2018
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
If it is getting pressure why would the rockers not be getting oil?
02-18-2018, 11:34 PM
Join Date: Feb 2018
Location: California
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
02-18-2018, 11:35 PM
Registered User
Thread Starter
Join Date: Feb 2018
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Yeah it no oil at all to the rockers on the driver side I will check the passenger side tomorrow which will probably be the same
02-18-2018, 11:39 PM
Join Date: Feb 2018
Location: California
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
You check if the pickup tube was clear?
02-18-2018, 11:41 PM
Registered User
Thread Starter
Join Date: Feb 2018
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Ya I cleaned it out and blew air through it and I checked the oil pump by putting a Alan bit on a drill and it seems to pump and push just fine
02-18-2018, 11:46 PM
Join Date: Feb 2018
Location: California
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
Does it sound like like dry lifters? Check dipstick when its warmed up should be thin and high on it. Old trick for oil pressure problems is put 1 qrt of tranny fluid in.