I have a 1994 Ford Ranger-I blew up the muffler-put in new Catalytic converter and Heartthrob exhaust; I have fuel pressure at filter and fuel rail: I have fire at ignition packs; the truck will crank, but not start; it tries to fire but tries to backfire also; code reader pulls nothing but a 111 and a 10;PLEASE HELP!
111 is a clear code, no? How the hell did you blow up a muffler?
Check your basics... check compression, plugs, wires, firing order, it'll run on 2 cylinders (TRUST me on that one hehe), so I'd guess the whole injector bank didn't fail... when it gets started you can hear the injectors fire with a stethoscope.
And don't break the vacuum lines going around the driver side of the intake manifold/throttle body (did that one too... it runs like crap...)
Muffler was called by misfire by my understanding-unburnt fuel into exhaust system via exhaust ports; It will not run at all, just crank and try to backfire when cranking-that is why I am leaning toward timing belt in am.
It sounds to me like the engine jumped time. That would account for everything. The backfire, the no start, the exploded muffler (it threw spark on full fuel charge with the exhaust valve open.
Do a compression test quick, I bet you find something around 50 PSI.
Well, you've got a bit to go to beat my record...3 mufflers blown wide open...one was distributor gear stripped...one was due to being too cold and cranking too much...one was similar to the second one but I also added some quick start to the mix making a much bigger bang for my $45 muffler...
A pro would cost you much more than it's worth to install a timing belt...I looked into that option a few years back and decided (after reading this site) that it was easier than I thought...and did my first belt in under two hours...but I have a carb and much easier setup...
It can be done...but don't put a new muffler on till you test it...
The last bolt that you're most likely missing is accessible from underneath the truck. I think its going from driver to passenger side, right above the crossmember. Only accessible with a normal size wrench or maybe a 3/8 ratchet.
I was doing pullups on the wrench before it broke loose.
OK, timing belt on, timing dead on, still firing and cranking, but not starting.What now?????????Fire at coil packs and trying to start. Fuel pressure at rail. Code 111 and 10 on koeo.Pulling thy hair out!
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