Low oil at startup/#5 cylinder misfire
#1
Teching In
Thread Starter
Join Date: Aug 2004
Location: NYC/Commack/Westbury
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Low oil at startup/#5 cylinder misfire
I get a check guage light at startup and the oil guage shows no oil. If I rev the engine the check guage light goes away but the oil guage stays lower then normal? I did a complete oil change with 5 quarts of mobil 1. AC delco filter. I replaced the spark plugs and wires with irridium TR55's and MSD wires.
I have other issues too that I figured out through the search. I'm wondering if they have anything to do with the low oil issue. Trouble code P0420=Bad Cat and P0305=misfire in cylinder 5.
Im going to run a catless exhaust but what do I go about fixing the #5 cylinder misfire and the low/no oil issue?
I have other issues too that I figured out through the search. I'm wondering if they have anything to do with the low oil issue. Trouble code P0420=Bad Cat and P0305=misfire in cylinder 5.
Im going to run a catless exhaust but what do I go about fixing the #5 cylinder misfire and the low/no oil issue?
#2
TECH Senior Member
iTrader: (5)
On the oil part your oil pump might be craping out on you, or your sending unit might be going bad. I would check into it with runing the car too much more. On the missfire part try taking and switching the coil with another and see if the misfire changes cyclinders.
#3
Teching In
Thread Starter
Join Date: Aug 2004
Location: NYC/Commack/Westbury
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
I'll look into getting a new oil pump, should I get gm stock or is there any good aftermarket ones? (P/N# Please?) I dont plan to do much performance beside bolt ons and possibly heads/cam.
I dont think the #5 cylinder misfire is a coil. Im pretty sure it has something to do with the malfuctioning cat or maybe pcv valve. Engine is stock and has a little over 60K miles on it. Any suggestions? Any other reasons why I show no oil pressure at start up and low pressure while driving?
I dont think the #5 cylinder misfire is a coil. Im pretty sure it has something to do with the malfuctioning cat or maybe pcv valve. Engine is stock and has a little over 60K miles on it. Any suggestions? Any other reasons why I show no oil pressure at start up and low pressure while driving?