| | | quote | Originally posted by Mike in Sydney:
Out or curiosity, have you checked your oil level? If the oil is too low, you could experience the drop in oil pressure and possible the faint "knacking" sound.
What year model is your car? What engine do you have? Is it a 4-cylinder or a V-6?
In 1984, the manual said to fill the 4-cylinder Iron Duke engine with 3-US quarts / 2.8 litres for an oil change which was too little. This resulted in thrown rods and engine fires. The correct oil level is 4-US quarts / 3.8 Litres. A recall changed out the dipstick to one that reflected 4-US quarts of oil so if you have a 4-cyl, You should be running 4-US quarts / 3.8 litres of oil after an oil & filter change.
The 2.8L V-6 engine needs 5-US quarts / 4.7 litres of oil after an oil & filter change.
If I were you, I'd change the oil and filter. If it's a 4-cyl, I'd put in 3.8 litres. If it's a V-6, I'd put in 4.7 litres. Check the dipstick after filling to these levels and top up after cranking and letting the filter refill. If the oil level is higher on the 4-cyl dipstick than the full line, then you probably have one of the older improperly marked dipsticks. You should remark the dip stick with a punch or file to reflect the correct, 3.8 litre oil level. |
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Year and Engine Q are needed.... but is Formula so is 88 often w/ V6.
Miss quoted GM Recalls is often bad or worse then not having a recall done. And
Not Applicable to 88 4 cyl.84 4cyl Engine Recall covers many issues w/ this engine...
To Properly increase oil capacity:
1. Charge Dip Stick and Tube to change final level.
2. Change tiny PF47 to long PF51 but GM discontinued that so use PF52. Both added oil capacity but 52 also used anti-drain.
Both are required to add oil capacity.
But Current "PF52" are made different and has less volume and change oil capacity < 4q/3
.8l
So to keep capacity @ 4q, use other brands still has long filter like number w/ 3980 (letters before and after change by grade and brand.)
All Fiero 4cyl...
If has to reach over the valve cover to check oil then Recall was
Not done.
New stick and tube moves the handle next to the T-stat tube on end of the Head.
While Only 84 officially added oil capacity but 85-87 can use the long filter and expect to add some more oil to reach the Full mark. I use the long filter just because easier to reach them.
88 4cyl is nothing like 84-86, maybe shares some parts w/ 87 but use different oil filters in the oil pan.
Don't use the long filter on V6 because often too close to exhaust pipes and cat.
