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1996 Buick Regal Repair Question


Topics covered: Lifters, Rebuild, Cam bearings.
Mileage: 191,000 miles.

Asked on July 7, 2012

Brake peddle feels like your are stepping on a pop can at times

Peddle is hard for a few seconds and them goes to normal. I have checked for a vacuum leak an none!
Avatar Asked by Firemnted

Answer

Replied on July 7, 2012

could be a bad booster or the master may be bad. does the car stop ok??

Roy

Tiny Answered by ASEMaster6371 (expert)
24,845 answers provided
Replied on July 7, 2012

The car stops o.k. It does make a strange sound when I start it in the morning sounds like a linkage binding and the peddle fades about half way but it only does this when I start it and put it in gear with in 20 seconds!

Tiny Response from Firemnted
17 questions asked
Replied on July 7, 2012

you may have a master cylinder issue. i would have this checked asap to avoid loosing the brakes and putting yourself in danger

Roy

Tiny Answered by ASEMaster6371 (expert)
24,845 answers provided

Replied on July 8, 2012

I did a little more looking and fond a small vacuum leak and that seems to have fixed it! But now The lifters are making noise! I have 4000 Miles on the rebuilt engine I had the cam checked before I reused it and was told there is no reason to replace the lifters! The oil light does not come on so I do not believe the oil pump went. I did rebuild the pump with the engine! Any ideas?

Tiny Response from Firemnted
17 questions asked
Replied on July 8, 2012

do a manual oil pressure check to verify the actual pressure.

used cam?? new lifters?? not normally done as they are a matched set.

lifters are a common failure in these motors. i would have replaced both if i were rebuilding the motor.

did you do the main, rod bearings and cam bearings in your rebuild??

Roy

Tiny Answered by ASEMaster6371 (expert)
24,845 answers provided
Replied on July 8, 2012

I put a crank kit in it. I had the machine shop check the cam and lifters they said the cam liked like new and there was no reason to change the lifters> the block was boiled so new cam bearings. What about a stuck check valve in the oil filter I just changed It last weekend?

Tiny Response from Firemnted
17 questions asked

Replied on July 8, 2012

This is the same 3800 I was working with you on a few months ago with the rough Idle at start up I replaced the MAF sensor because the top was cracked!

Tiny Response from Firemnted
17 questions asked
Replied on July 9, 2012

Do you know what the oil pressure should be at Idle I got 70-75 PSI

Tiny Response from Firemnted
17 questions asked