oil pressure problem
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 43
Likes: 0
oil pressure problem
my 1990 302 was leaking anti freeze into oil from busted head gasket. i replaced all gaskets and installed new oil pump and replaced rod bearings. before i did all this work my oil pressure was normal until it heated up in neutral. once at operating pressure it would drop into red. after all the work i did now the oil pressure is good even after it heats up.
1 Now though when the car is at operating temp, if i put it in gear the oil pressure drops to zero instantly. if i put it in neutral or park or accel it goes back to regular oil pressure.
2 when its in gear and i step on the brake and accel i feel a vibration from beneath me. i only did this with the brake cause i was in my driveway but i feel it would act the same had i been driving on the road. if its in neutral or park there is no vibration when i accel. Any help on this would be greatly appreciated thanks
1 Now though when the car is at operating temp, if i put it in gear the oil pressure drops to zero instantly. if i put it in neutral or park or accel it goes back to regular oil pressure.
2 when its in gear and i step on the brake and accel i feel a vibration from beneath me. i only did this with the brake cause i was in my driveway but i feel it would act the same had i been driving on the road. if its in neutral or park there is no vibration when i accel. Any help on this would be greatly appreciated thanks
Last edited by JET EDWARDS; Nov 29, 2006 at 09:11 PM.
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 43
Likes: 0
they got them fo lik 6 at autozone and probly other auto stores. does yours have a threaded rod at the top that holds one wire with a nut? if so dont do what i did and tighten the little nut too tight; it broke the whole thing in two pieces and i reinstalled the old one. im buying a new one tomorrow
Trending Topics
Senior User
Joined: Nov 2006
Posts: 112
Likes: 0
From: LONEDELL MO
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 43
Likes: 0
just bought two different ones (gauge and light) neither worked the gauge one worked better than the other. but same prob overall. bottom line i hav an electric issue which ill take ov er the low oil pressure. after the needle starts going low if i turn my lights on it goes way down dido turn wheel dido put in gear. so im just ignoring that gauge all together and will down the road put in a mech oil guage. oh yeah mine has one wire too. ands my oil gauge is the kind that spells normal
Elder User
Joined: Nov 2005
Posts: 834
Likes: 0
I would check the grounds. Especially the one between the firewall and the engine. Easy to overlook that one cause it tends to hang down out of sight when diconnected from the engine. I left that one off after a valve job on a Vega many years ago. It was a bad bad thing, but the fire went out as soon as the engine died.
Good Luck Frank
Good Luck Frank
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 43
Likes: 0
funny u say that cause the one you speak of is still in place but i did brake the circle connector that attaches to one of the valve bolt. i just arrached it to the end of a bolt that sticks out from the firewall naybe it should be attacked back to the engine. think that could cas some disturbances?
Elder User
Joined: Nov 2005
Posts: 834
Likes: 0
Doesn't matter what kind of connector you have on the end of the wire, as long as you have a good electrical connection. No corrosion and tight. A bad ground can cause a multitude of problems and you can go nuts chasing them.
When you said turning on the lights made the oil pressure drop, I thought of grounding problems. The oil pressure gauge is not really a pressure gauge, it is just an electical meter showing off or on. If you have the E4od tranny, it is all controled elecrically also, might be the funny vibration when it goes in gear. I'm just guessing, but sure makes sense to me.
Good Luck Frank
When you said turning on the lights made the oil pressure drop, I thought of grounding problems. The oil pressure gauge is not really a pressure gauge, it is just an electical meter showing off or on. If you have the E4od tranny, it is all controled elecrically also, might be the funny vibration when it goes in gear. I'm just guessing, but sure makes sense to me.
Good Luck Frank
Last edited by fmr9; Dec 1, 2006 at 11:36 AM.