So the story goes:
Christmas Eve - He was not paying attention and ran over an island crosswalk curb. About 3" tall. Didn't catch air as he was doing 30 (or so) mph.
Didn't scrape anything, didn't cut or puncture anything.....just went over a curb.
A week later - Turns the key and the engine turns, but 2-3 seconds into cranking, it comes to an abrupt halt as if the piston is coming up on something it cannot compress such as water, but if you were to continue engaging the starter, it'll turn another couple revolutions, but then come to a semi-violent halt and repeat.
Today - Found that if I were to take the ECM (1 or 2) fuse out, the starter kicks the engine over perfect. Nothing stopping it from turning at all....ok? So since there is fuel, there is spark, that means something that has to do with timing? In my experience, when timing is off, it'll spark at the wrong time and shove the piston opposite of where it wants to go and 'abruptly halt'.
Hmm...how can the dizzy skip a tooth?? Why does it turn over great with no computer fuse in?? I cannot compare 95% of my knowledge on 70s-80s toyota to a late 90s gm. I'm sure there isn't a whole lot difference, but they're too far between, but I tried turning the dizzy only to find it can be spot-on or 180° off.
It' CAN'T skip time!! So I put it all back together after verifying the dizzy does in fact turn and is not broken (despite being plastic!!) and am left scratching my head.
I work at a non-walk in junkyard. We get tons of cars in ranging from 1965 to right now. We have this 1998 Bravada (S-10 Blazer with shiney buttons and a kit lol) and somehow, the engine's bearings are toast.
It acted the same. Crank for a few revs and cut out almost to a dead stop, then continue cranking.
His Tahoe was so low on oil that it didn't show up on the stick at all. Added a quart, but it only showed up half inch, if that. Can that cause this mayhem? Even though it sounds great without the ECU? I know you won't hear any knocks without it running, but I've gone through all I can.
This dude has spent about $8k on this thing not including buying it in the first place. I feel very bad for him as he knows nobody around here that knows GM cars/trucks well and he's been able to drive it about 10k miles in the past 2 years after he paid out the ass for a new engine and transmission. The rest of the time it has been sitting because something else after something else after something has gone wrong.
The only other way I can explain it's problem is to take video of it next weekend and post it so you guys can get a better idea.
Shops are out of the question. He'll part it out before he trusts a shop to work on it. I won't do very much as it is well beyond what I know and have tools for.
To make a long story even longer, he has this 90 caddy sedan deville...yea yea I know. It has busted head gaskets from overheating due to coolant loss through radiator and water pump and both vehicles need starters.
I don't know where to go or who to ask other than the good ol' intarwebs.
This is very very difficult to put into words, let alone type out. I do hope to hear of some suggestions and be prepared for next weekend and resurrect it from the dead.
Anybody have suggestions? I've already tried the double barrel approach, but that didn't work so well
Christmas Eve - He was not paying attention and ran over an island crosswalk curb. About 3" tall. Didn't catch air as he was doing 30 (or so) mph.
Didn't scrape anything, didn't cut or puncture anything.....just went over a curb.
A week later - Turns the key and the engine turns, but 2-3 seconds into cranking, it comes to an abrupt halt as if the piston is coming up on something it cannot compress such as water, but if you were to continue engaging the starter, it'll turn another couple revolutions, but then come to a semi-violent halt and repeat.
Today - Found that if I were to take the ECM (1 or 2) fuse out, the starter kicks the engine over perfect. Nothing stopping it from turning at all....ok? So since there is fuel, there is spark, that means something that has to do with timing? In my experience, when timing is off, it'll spark at the wrong time and shove the piston opposite of where it wants to go and 'abruptly halt'.
Hmm...how can the dizzy skip a tooth?? Why does it turn over great with no computer fuse in?? I cannot compare 95% of my knowledge on 70s-80s toyota to a late 90s gm. I'm sure there isn't a whole lot difference, but they're too far between, but I tried turning the dizzy only to find it can be spot-on or 180° off.
It' CAN'T skip time!! So I put it all back together after verifying the dizzy does in fact turn and is not broken (despite being plastic!!) and am left scratching my head.
I work at a non-walk in junkyard. We get tons of cars in ranging from 1965 to right now. We have this 1998 Bravada (S-10 Blazer with shiney buttons and a kit lol) and somehow, the engine's bearings are toast.
It acted the same. Crank for a few revs and cut out almost to a dead stop, then continue cranking.
His Tahoe was so low on oil that it didn't show up on the stick at all. Added a quart, but it only showed up half inch, if that. Can that cause this mayhem? Even though it sounds great without the ECU? I know you won't hear any knocks without it running, but I've gone through all I can.
This dude has spent about $8k on this thing not including buying it in the first place. I feel very bad for him as he knows nobody around here that knows GM cars/trucks well and he's been able to drive it about 10k miles in the past 2 years after he paid out the ass for a new engine and transmission. The rest of the time it has been sitting because something else after something else after something has gone wrong.
The only other way I can explain it's problem is to take video of it next weekend and post it so you guys can get a better idea.
Shops are out of the question. He'll part it out before he trusts a shop to work on it. I won't do very much as it is well beyond what I know and have tools for.
To make a long story even longer, he has this 90 caddy sedan deville...yea yea I know. It has busted head gaskets from overheating due to coolant loss through radiator and water pump and both vehicles need starters.
I don't know where to go or who to ask other than the good ol' intarwebs.
This is very very difficult to put into words, let alone type out. I do hope to hear of some suggestions and be prepared for next weekend and resurrect it from the dead.
Anybody have suggestions? I've already tried the double barrel approach, but that didn't work so well
