1989 Mazda Truck Oil in the breather

1989 MAZDA TRUCK
12,100 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
CCORVIN123
  • MEMBER
  • 1 POST
What is causing the problem noted in the subject? The engine starts good, runs smooth except on the hiway, skips, (probably the oil is blowing into carb), does not smoke when started.
Feb 6, 2008 at 10:28 AM
Advertisement
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Replace the positive crankcase ventilation valve-PCV valve-its flowing backwards
Feb 6, 2008 at 12:21 PM
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
From: ccorvin123
To: rasmataz
Posted: Thu Feb 07, 2008 12:58 pm
Subject: response to question 2/6

I understand from others that the problem may more likely be bad rings that are allowing compression into crankcase. The engine surges when diriving slowly, not as noticeable on the road.

Could be that you have an excessive blow-by and the PCV valve cannot handle it.
Feb 7, 2008 at 1:00 PM
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
From: ccorvin123
To: rasmataz
Posted: Thu Feb 07, 2008 1:30 pm
Subject: oil in breather
Thanks, That is what a mechanic told me today, he said excessive blow back.

I was looking at the truck to buy for my son as a 2nd veh. so he could park his dodge 1500 gas hog. Shame it has this problem cause the little truck is in choice condition otherwise. Guess I will let it go! Can't afford a rebuld job or replacement engine which probably would not be any better. From the looks of other posts the 89 2.2 wasn't a very reliable engine to begin with.


Replace the PCV valve its cheap-I did a B2200 86-way back with a lot of blue smoke and when I changed it- it helps.
Feb 7, 2008 at 1:40 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.