10-22-2018, 09:09 PM
all cars this old have like 10 problems, or more. (well the bad o-ring flooding engine failure is gone , cheers)
totally normal that.
look out on road in town, see in 1990 cars moving and being driven?, not one here, zero. If I see one its like a Kodak Moment !
parts stores, tend yo have no parts on the self for 1990 cars, for the reasons above, why would they waste precious shelf space.? locally.
the 1990 TBI does make sucking sounds, the ISC sucks air, the IAC sucks air the TV sucks air all the time running. IAC turns off hot engine.
The PCV hose can be cracked, never seen one this old not cracked and that sucks air.
are all the stock intake parts present?, the huge air pipe on top the TB, and air cleaner box.? all those parts include a design that not only filters air but stops induction noises.
GraB an old gas line 1/4" hose say 2 feet long, (arms length) put one end to you ear, and move the other end to find noises, like vacuum leaks etc.
you should snap at least one photo of the engine, and put it in the gallery then put the BBC link code in a post here.
then we can see, what is there.
28 year old cars have this bad habit of having missing key parts, and wrong parts installed or totally missing.
a photo is really wroth 1000 words. in many cases. left and right side, wow.
The ISC on the old car likes to fail. top part right side of TB throttle body.
it has 2 wires, and likes to fail , stick, make noise, or do very odd things, it wiggles 200 times a second after 28 year, its now a wreck. (some even work this old but are very noisy)
ISC = Idle speed control solenoid valve. (it's an electro magnetic air valve)
valve lash is checked every 50k, to 60,000 miles, if not done those solid lifters make noise, or the opposite get tight and burn the valves in the head to a crisp.
valves that are talking to you have this message, (the PO never did proper service on the car)
This is an 8valve engine and is more easy to work on , and only 1 injector not 4, so that too makes it more easy to work on,
The 8v engine with vacuum leaks cause idle RPM to go too high with full engine power, unlike 16valve MPI engines.
so that too is good, that full power part when leaks happen.
I'd first put new spark wires on it so this old weak spark system can work better, best of the best are MAG wires. BOSCH mag wires are very cheap and GOOD> NGK better but $$$$
make sure the front crank pulley bolt 17mm head is set to 94/ft/lbs torque, per factory TSB (warning sheet by Suzuki) avoiding crank snout damage, and doom thing.
that is all for now. good luck.
totally normal that.
look out on road in town, see in 1990 cars moving and being driven?, not one here, zero. If I see one its like a Kodak Moment !
parts stores, tend yo have no parts on the self for 1990 cars, for the reasons above, why would they waste precious shelf space.? locally.
the 1990 TBI does make sucking sounds, the ISC sucks air, the IAC sucks air the TV sucks air all the time running. IAC turns off hot engine.
The PCV hose can be cracked, never seen one this old not cracked and that sucks air.
are all the stock intake parts present?, the huge air pipe on top the TB, and air cleaner box.? all those parts include a design that not only filters air but stops induction noises.
GraB an old gas line 1/4" hose say 2 feet long, (arms length) put one end to you ear, and move the other end to find noises, like vacuum leaks etc.
you should snap at least one photo of the engine, and put it in the gallery then put the BBC link code in a post here.
then we can see, what is there.
28 year old cars have this bad habit of having missing key parts, and wrong parts installed or totally missing.
a photo is really wroth 1000 words. in many cases. left and right side, wow.
The ISC on the old car likes to fail. top part right side of TB throttle body.
it has 2 wires, and likes to fail , stick, make noise, or do very odd things, it wiggles 200 times a second after 28 year, its now a wreck. (some even work this old but are very noisy)
ISC = Idle speed control solenoid valve. (it's an electro magnetic air valve)
valve lash is checked every 50k, to 60,000 miles, if not done those solid lifters make noise, or the opposite get tight and burn the valves in the head to a crisp.
valves that are talking to you have this message, (the PO never did proper service on the car)
This is an 8valve engine and is more easy to work on , and only 1 injector not 4, so that too makes it more easy to work on,
The 8v engine with vacuum leaks cause idle RPM to go too high with full engine power, unlike 16valve MPI engines.
so that too is good, that full power part when leaks happen.
I'd first put new spark wires on it so this old weak spark system can work better, best of the best are MAG wires. BOSCH mag wires are very cheap and GOOD> NGK better but $$$$
make sure the front crank pulley bolt 17mm head is set to 94/ft/lbs torque, per factory TSB (warning sheet by Suzuki) avoiding crank snout damage, and doom thing.
that is all for now. good luck.
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