mark4000
New Member
- Joined
- Nov 12, 2013
- Messages
- 12
- Reaction score
- 0
- Points
- 1
- Vehicle Year
- 1997
- Make / Model
- mazda
- Transmission
- Manual
My mechanic says I need a new engine. I have a misfire in cylinder 4 of my OHV 4.0 6 cyl.(Mazda B4000) along with the various system Rich/lean codes-1151,1152 bank2 and 0172. I have had issues with this lemon of a car from the time i bought it over twenty years ago (each year of the first 8 years or so always having to fix the car to clear the check engine lights before passing emission; $1000's and $1,000's of $'s; inevitably each year the check light would always come back. I would always just wait till the next year to deal with it.
Also, Around this same time in the mid 2000's and trying to get to the bottom of this continuing engine light problem, I had a compression check and one cylinder (I guess 4-I don't have the receipt) was low. It did run pretty well for over 10 years-maybe having to replace the spark plugs, wires etc, sensors, egr etc etc. every two years ( I eventually was doing them myself).
Now, about 8 months back the check engine light came on again. In Sept, hoping just replacing the top end gaskets (also chasing a valve cover leak) would solve the problem, but to no avail the check engine light came back.
I wanted this issue resolved, so in November I took it to a mechanic and they did a leak down test(negative), smoke test(negative) and a compression test which showed cylinder 4 at #100 and 6 at #140; others at 160 or above- I think. They said I need a new engine.
Although the car ran fine for the first 3 months and into the new year after the diagnosis (even took it out of town 100 miles a few times), eventually starting in late January or February, a few times the car would just stop in mid rev-Yikes! I would just restart it and go on-things were fine like this for a month or two, but now in the last month I have no power. I stay on small roads because I cant stay above 50 or 60 mph.
Before I take the plunge to just under $2,000 for a used engine replacement, I just trying to get opinions if this sounds like a bad engine and not just something me or the mechanic is misdiagnosing. Any wisdom or advice would be greatly appreciated.
Thanks, Mark
Also, Around this same time in the mid 2000's and trying to get to the bottom of this continuing engine light problem, I had a compression check and one cylinder (I guess 4-I don't have the receipt) was low. It did run pretty well for over 10 years-maybe having to replace the spark plugs, wires etc, sensors, egr etc etc. every two years ( I eventually was doing them myself).
Now, about 8 months back the check engine light came on again. In Sept, hoping just replacing the top end gaskets (also chasing a valve cover leak) would solve the problem, but to no avail the check engine light came back.
I wanted this issue resolved, so in November I took it to a mechanic and they did a leak down test(negative), smoke test(negative) and a compression test which showed cylinder 4 at #100 and 6 at #140; others at 160 or above- I think. They said I need a new engine.
Although the car ran fine for the first 3 months and into the new year after the diagnosis (even took it out of town 100 miles a few times), eventually starting in late January or February, a few times the car would just stop in mid rev-Yikes! I would just restart it and go on-things were fine like this for a month or two, but now in the last month I have no power. I stay on small roads because I cant stay above 50 or 60 mph.
Before I take the plunge to just under $2,000 for a used engine replacement, I just trying to get opinions if this sounds like a bad engine and not just something me or the mechanic is misdiagnosing. Any wisdom or advice would be greatly appreciated.
Thanks, Mark