Search results

  1. G

    High volume oil pump 98 K1500 5.7

    It’s been a while I got the oil nice and hot last weekend hauling firewood I pointed my laser thermometer at the oil cooler lines and got 228 and 223. 5 degree differential through the oil cooler? Doesn’t sound right to me Is there a bypass built into the stock system? Anyway, how do those...
  2. G

    High volume oil pump 98 K1500 5.7

    Good tip Thank you I’ll give it a shot
  3. G

    High volume oil pump 98 K1500 5.7

    AC Delco PF52E oil filter
  4. G

    High volume oil pump 98 K1500 5.7

    Unfortunately, the oil pressure dropped to a level that triggered the check gages light. I think I will look at the alternative oil cooler next. More than a little bummed, but not at all surprised.
  5. G

    High volume oil pump 98 K1500 5.7

    I’m driving the truck to work tomorrow, so it should get about as hot as ever. But I’m pretty confident that the idiot light will stay off, and noise hasn’t been an issue (should have mentioned that earlier) About sableslayer’s comment, I was wondering about that. Thanks for sharing your...
  6. G

    High volume oil pump 98 K1500 5.7

    I believe that there are about 100,000 miles on this motor. I believe, because about 4.5 years and 20,000 miles ago I bought it sight unseen having been told it was an 80,000 mile motor. I jumped to a number of wild, irrational conclusions when the oil pressure started triggering the check gages...
  7. G

    High volume oil pump 98 K1500 5.7

    So I think that I may be at a loss right now, as to the smartest course of action. Why did my oil pressure, on this not worn motor, drop so low? The thicker motor oil boosted pressure, but at what cost? New oil pump? - Maybe the pressure relief springs are heat soaked? New high volume oil pump...
  8. G

    High volume oil pump 98 K1500 5.7

    Ran compression test today 160,160,150,155,155,155,160,160 Decided to not perform leak down Overall I thought my plugs looked good, a bit of oil on the threads of 1 and 6 Gaps were up to .071. I installed new ones gapped at .060
  9. G

    High volume oil pump 98 K1500 5.7

    So I changed the oil and filter last night. 4 qts 15-40, 1 qt 20-5, and AC Delco filter Cold idle went from 36 psi to 42 I haven’t driven it far enough to compare hot idle pressure yet, but I’m optimistic that this is an improvement I was confident that the engine was wearing out and needed...
  10. G

    High volume oil pump 98 K1500 5.7

    Auburn, Ca actually Wow, thank you for this most correct answer! I do have a mechanical gage set up, but it’s not nearly that expensive, likely not as accurate. It has suggested that the cluster mounted gage is not far off. I’m currently running a blend of mostl 10-30 and some 5-30. I think...
  11. G

    High volume oil pump 98 K1500 5.7

    Thank you, I was sort of thinking the same thing, but have read the opposite
  12. G

    High volume oil pump 98 K1500 5.7

    My 98 K1500’s “Check Gages” light illuminates when the engine is warm. I understand that this is not uncommon. I have confirmed recently that the pressure is indeed low, but not exactly how low it gets. I think I saw 12 psi, but hadn’t driven it too hard that time. I’m thinking about installing...

Latest posts

Members online

... and 33 more.
Total: 1,763 (members: 83, guests: 1,680)

Forum statistics

Threads
64,654
Messages
1,398,050
Members
52,155
Latest member
hobbiest

Share this page

Top