Done changed coil pack and crank sensor put in new spark plugs and wires still will not start replaced starter as well it's a 89 ninety eight regency fe3 My 89 oldsmobile 98 is having starting problems. CAA checked out battery and it was fine as well as the starter. The CAA guy said he thinks it has something to do with Gas. Any Ideas?? I only have a 500 dollar budget to fix this car:(
If you suspect its a fuel problem best to do a fuel pressure test, you can rent a tester at auto zone and do it yourself. They also can show you how to use it and what pressure it should be. Also if you turn the key to on position you should hear a hum from the gas tank and then a click that is the pump running and the click is the relay, if you don't then the pump isent running, also chk. the fuse and relay, it could be as simple as a blowen fuse or a bad relay.
I chased this same issue with my 89 olds cutlass supreme started out with feul pump,sending unit and filter. That helped but still had issue then did air check valve, and throttle position sensor it helped a little more with runability but still had irregular starting so tested and replaced feul regulater oh boy that helped more yet didnt take care of issue. So beings the car ran great when it ran why do the injectors right. So i went after plugs and coilpacks and ignition modual lol boy this car runs good but still have starting issue lol so i took it to a garage for there input they told me ijectors and ECM was bad, boy so i did injectors and pc myself and bam car starts great on demand and when i want it to start. If you do the work your self but dont have the money for all kinds of parts call around for a diagnostic only cost for me was $30.00 and parts were under $300.00 injectors and ECM. All the other parts came up to almost $700.00. So if you got a budget to work with and want to get striaght to the issue have a garage with diagnostic eq. tell you what is wrong with it. They dont mind not doing the repair. Its still work for them just to do diagnostics. Good luck on your repair
Your fuel pressure will leak down 1psi per every five minutes if it leaks down afaster tthan that then you have a problem if it has 40 psi while trying to start and when running that is what you need it will leak down overnight these cars are bad to have faulty ignition modules that makes the car try to run out of time.
Just checked on a new fuel pump and it says it is 40psi. But we ran a test at the fuel rail and it waw 40psi with just the key to on. At the time it wouldn't start.
(It only starts... quickly, in morning or when sitting for hours. But, not always. Sometimes it is irregular.)
Someone told me that the 40psi needs to be constant... but, that isn't the case as the following day the fuel filter line had ZERO psi.
So check on how many checks to fine the proper psi. Found one site that said check fuel pressue on the rail after taking out relay... i think it is 2nd down on right column behind glove box. Then use jumper wire to bypass relay.
Then do another test... etc.
So find out proper testing for this car.
Also, need to check fuel pressure regulator.
good luck.
Get like 45 dollas to get an alternater from the junk hard
If your engine cranks normally but will
not start because it has no spark, or it stalls and won't restart because it
has no spark.
You can also do a test to confirm the
problem .The procedure to do the test is as follows:--- If your
engine has spark plug wires, disconnect one of the plug wires from a spark plug
and place the end of the wire near a metal surface on the engine. Then insert a
small Phillips screwdriver into the end of the wire (the plug boot), or a small
bolt or nail to provide a conductive path. Then crank the engine and look for a
spark to jump from the screwdriver, bolt or nail in the end of the plug wire to
the engine. If you do not see a spark, there is an ignition problem. OR----------- If your engine has a
coil-on-plug ignition system with no plug wires, In that case remove one
of the coils from the spark plug and insert an old spark plug, a spark plug
tester or a screwdriver into the end of the coil. Ground the spark plug or plug
tester to the engine, then crank the engine and look for a spark. No spark
indicates an ignition problem.If the engine has no spark, check for
voltage at the coil positive terminal when the ignition key is on. If NO
voltage, then problem is on the trigger side of the coil (pickup, crank sensor,
ignition module or primary wiring circuit).
But If there is NO voltage at the coil
itself, then in that case the problem is on the supply side (the ignition
switch or ignition wiring circuit).-----------------
Jeep cranks but no start:---------------- A jeep that cranks over but doesn't start, in many cases will be
due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or
crank sensor. Also these problems are related to faulty spark plug. Check the
spark at spark plugs when you start the jeep. Do you notice any spark. Actually
you should see. If in case there is no spark then it's a spark plug problem.
Also the coil pack gives power to spark plug. So check the voltage at coil
pack. It will show 12 volt. If there is no voltage noticed at coil pack then
its faulty coil pack that has to be replaced. If all the possible options
checked out ok then check the car starter. The starter gets power from battery
to start the jeep. If the starter is faulty then it will not let the car to
start. Also check and confirm that there is fuel in the jeep. If its very low
fuel then in some cases this causes the problem. Also check and confirm that
fuel pump is functioning properly and the fuel filter is not clogged. One of
the easiest ways to check for a fuel pump related problem is to spray a little
starting fluid into the air intake while trying to start the jeep. If the car
starts momentarily, then there's a good chance the fuel pump is not working or
the jeep is out of gas. You can also listen for the fuel pump's humming sound
when the key is first turned on. Also if a inoperative fuel pump is suspected,
a good technician will always check to verify there is power and ground being
supplied to the pump, to eliminate the possibility of a bad relay or electrical
issue. Fuel pressure can be checked with a pressure gauge and if there is
pressure, pulse can be checked at the fuel injectors in several ways including
the most common, with the use of noid lights. If the injectors don't have pulse
the engine won't start. ---------- This troubleshooting tips will help you to solve the problem. Thanks.
Helpmech.
There are some possibilities which you
will have to check in this case:--
1) First of all check the power and
voltage to the battery. With meter it will show exact 12 volt if the
battery is charged. If the voltage is less get the battery charged at local
auto repair shop. If the battery is internally drained and not getting charged
then its time to replace the battery.
2) When you crank the car do you see
spark coming at the spark plug? If no then its time to check the spark plugs
and coil pack. If the spark plugs are not worn out and looks new then its time
to check coil pack. The spark plug gets power to spark from coil pack.
3) The other thing to check in this case
is the starter solenoid of the car. If the battery is charged and you start the
car then it gives power to the starter to start the car. But if starter is
faulty or not connected properly then car will not start.
4) The other thing to check in this case
is fuel in the car. If there is fuel in the car then check the blockages in the
fuel pump if the fuel pump looks proper then check the fuel filter above the
fuel pump.
5) If all the above possibilities
mentioned above checked out OK/perfect then it's a electrical issue and
the wiring's in the car needs to be checked. The car gets
power from the battery to get started. so the wires from battery needs to be
checked one by one.
Thanks.
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