"PrecisionmachinisT" wrote in
message news:jPGdnXN8R9fn_W_PnZ2dnUVZ firstname.lastname@example.org...
"a conventional four-stroke engine, this signal must also observe the
phase of the camshaft relative to the crankshaft, so contact breakers
are normally driven from the camshaft and distributor drive. With a
wasted spark, the crankshaft can be used instead, as the system fires
on both revolutions."
Like a 2-stroke.
(You're in my twit file, Doug. I see your posts only when someone
quotes you. Ask Stryper for help, whydoncha? ;)
(You're already into it for more than a pro would have charged, and a
pro would have a network of other -relevant- pros to fall back on for
advice when they came up empty. I'm certainly not saying that the
good folks here aren't knowledgeable, but I think clare is the only
-active- automotive font of knowledge here.
But it's likely documented by Saturn dealers and could turn out to be
a $50 fix, or whatever their minimum is nowadays. I've been out of
the field since '86.)
I prefer the relative maintenance-free comfort of a newer vehicle, but
you have a definite point there.
Sadly I know some "professionals" who are just as bad.
Troubleshooting is a lost art, and logical thought all but
non-existant in the general population. Sure helps to understand the
basic theory of how something works, too.
A badly flooded cyl can flood the rest of the engine too. Has the OP
checked his oil level on the dipstick? If the injector(s) is (are)
stuck open he will be "making oil".
My suspicion is he grounded his injectors by pinching a wire. I've
seen it happen more than once. (never done it myself, but have had to
fix a few))
But crank sensor only can't tell if the belt has jumped. Some engines
(don't know about the Saturn) will not fire if the cam sensor and
crank sensor are not timed identically (to prevent damage from running
The OP said that when starting fluid was used it backfired out the
throttle body. In my experience as a shadetree mechanic when I
experienced backfire it was either an intake valve or valves that
didn't seal, for whatever reason, or the timing was off so that the
spark occurred when the intake valve was open. What other conditions
can cause backfiring on a fuel injected engine? It's nice to be able
to ask someone who really knows about cars.
dpb wrote in news:lctj2g$1nf$ email@example.com:
Definitely not. I've checked that about five times now.
Saturn S-series engines use timing chains, not belts. I suppose if the tensioner broke, the
chain might have jumped... but that seems unlikely.
Saw pretty much the same behavior on our other Saturn S-series last summer when the
crankshaft position sensor failed. That tests good on this one, though.
firstname.lastname@example.org wrote in news: email@example.com:
Oil level is OK.
So you think the injectors are running constantly, and flooding it? If that were the case, I should
be able to smell it. But I don't.
Larry Jaques wrote in
I think it's past time that I put you in my twit-filter too, since you obviously have no clue how to
locate or fix the problem and hence have nothing to contribute beyond gratuitously
Really? So far, the total is only about $175. The tow to a shop, alone, would be 40% of that.
So you clearly don't know what you're talking about.
Clearly you aren't, at any rate. *WHAT* Saturn dealers?
No, you're not out of the field at all. You're still way out in left field.
Especially if you think you can get anybody to look at an engine for fifty bucks.
I've had badly flooded engines backfire on ether.
That engine needs to be "dried out" which may require changing the
oil, and it needs clean dry plugs. It also needs to be checked for
injector pulses - a set of "noid" lights would make the job easier.
If the injectors are not firing it COULD be a bad sensor - but if they
are on steady he has a bad engine control computer or grounded
harness. Disconnect the computer, if they still stay on the harness is
at fault. If not, the computer.
I've seen 'em get off a tooth (or break a tooth or the like) but as
somebody else noted, that you seem to have good compression means
mechanically it's in synch within enough it ought to fire lacking
something else. May be time for new for PM, but it ain't the present
Then the firing order is suspect or you put the cam back in 180 out or
something similar to have the intake valves open when it fired. As
again somebody else noted, there's no back fire thru the throat if
intakes are closed when it fired so they weren't.