38oo series motor it will sometimes idles really rough when at a red light when it does it will sputter and jump when i take off also does the same when picking up speed but only does it about every other time i drive it
You don't say how many miles its done so is it due a good engine service? Its no good sticking it on a diagnostic unit if its already sick. Get the basics done first.
SOURCE: jumped timing?
It really does sound like the timing went out of whack. The timing belt should be replaced periodically, according to your owner's manual. It may have worn and stretched just enough to slip over a cog a bit. Remove the timing belt covers and check the alignment of your cam and crank. There should be subtle marks on the cogs and the rear cover or casting. The compression will be good during a cranking test, but will not be ok during a running compression check. Replace the timing belt and check the pulleys. If your timing belt did not slip, the timing chain tensioner or guide shoes may be worn and will require replacement.
SOURCE: 1995 pontiac bonneville stalls
I just went through lots of troubleshooting and expense on my 1996. Whenever I would lift my foot off the accelerator and was below about 30 mph, the rpm's would starts jumping around and sometimes it would stall. If I gave it a little gas (accelerator), I could sometimes keep it running. It also backfired once in a while. Starts right back up. Also, if I let it idle while in part, it would die after 1-2 minutes.
I ended up finding a hole in the fuel regulator. About a ~$70 part if you get an AC Delco, but very simple to change.
SOURCE: 98 sunfire sputtering
Most likely it's bad wires, fuel injector, or your PCM. This will tell you how to figure it out.
********There's 4 things an engine needs, Air Spark Fuel and a brain to
tell them when to do which. If everything seems fine, fuel injectors
are fine (right resistance), have spark, and your air filter isn't
black, then call a dealership, (DO NOT go there, just call) give them
your VIN number and ask if the
recall has been done yet on the PCM gasket and if there are any other
free recalls that need to be done. This car and the cavalier had a
bad gasket on the PCM casing, allowing water to get in and destroy the
main computer. Screws everything up and puts most of these cars in the
junkyard long before 200k miles. Simple fix though, new computer, new
connectors. It's located underneath the passenger headlight, the
stupidest place to put it, so puddles kill the car and make it so it
will sputter and eventually die. EVEN IF THE DEALERSHIP SAYS IT'S BEEN
DONE, VISUALLY CHECK THIS!!!!! After I paid a dealership to do $400
worth of "general electrical work" that still didn't fix the problem, I
researched it myself and found that even though the recall had been
done, the guy botched the job and water still got in. SPUTTERING AND
THEN DEAD. Sound Familiar?
Air Spark Fuel and Brain
First make sure your Air filter is clean, and that it is able to ****
air into the airbox. If leaves clog the air intake cause it's near the
ground, no air, no combustion. Take off the cover to the air filter,
check the air filter, if it's black at all, change it, tan-light brown
can stay a little longer. Leave it on the top part of the air box and
try starting the car, so that the air that gets sucked in goes through
the filter but doesn't come from the air box, just the ambient air
around the engine compartment. If it runs without being contained in
the filter housing, then you either have critters, a critter nest, or
you sucked up a bunch of leaves that are blocking the air flow.
Compressed air, have fun with it. Getting air? Good, now is it getting
spark.
What you want to do is check if there's spark at all 4 plugs. You can
go to the auto parts store and pick up a spark plug tester that plugs
into the wires and clips to the engine and allows you to see the spark,
or you can do it the fun way. Remove one by one, clean em off with a
rag and test them by pressing the threaded side of them (obviously
don't touch the metal, use the wires to hold em) to the engine block
for a ground. Have someone try to turn it over for just a second, if it
turns twice, but you don't get a spark, verify it by doing it again. If
they're not firing, replace plugs and wires, try starting it. Test the
cam and crankshaft sensors and last the ignition coil-packs. If this is
the 2.2, they're on the back of the engine and accessible from
underneath.
If the plugs fire, great, now check the fuel. Get out of the car, take
the gas cap off, and put your ear to the hole while someone turns the
key on, without starting it, for 3 seconds then turns it off a couple
times. If you can hear the whirring sound, good, if not, check the fuel
pump, fuel filter, relays and fuses. Now the injectors.
Time for the voltage meter! Get a voltage meter that measures Ohms,
(symbol of a horseshoe) which is the resistance through something.
Unplug the injector, touch the two posts inside the injector with the
ohmmeter, and see what it says for each one. If the injectors don't
have the right resistance, they're bad and need to be replaced.
Here's the specs...
For 2.2L OHV engines:
1995 - 11.6 to 12.4 Ohms
96&97 - 11.8 to 12.6 Ohms
98 to 2000 - 1.95 to 2.3 Ohms
01 to 02 - 11 to 14 Ohms
For 2.2L OHC engines:
2002+ - 11 to 14 Ohms
For 2.3L (1995) and 2.4L OHC engines:
1995 (2.3L) - 1.95 to 2.15 Ohms
1996 to 98 - 1.95 to 2.3 Ohms
99 & 2000 - 11.4 to 12.6 Ohms
01 and 02 - 11 to 14 Ohms
If they give the right readings, test the connectors to the fuel
injectors with a NOID Light, available to buy or rent from most auto
parts stores to see if the injectors are getting the signal to fire. If
they aren't, the NOID Light won't flash and there's a problem with your
computer or the link to it. Visually check the PCM again and connectors
for corrosion. Once again, there was a recall on the PCM housing that
KILLS MOST OF THESE CARS. . Good Luck.
SOURCE: sputtering 98 sunfire
********There's 4 things an engine needs, Air Spark Fuel and a brain to
tell them when to do which. If everything seems fine, fuel injectors
are fine (right resistance), have spark, and your air filter isn't
black, then call a dealership, (DO NOT go there, just call) give them
your VIN number and ask if the
recall has been done yet on the PCM gasket and if there are any other
free recalls that need to be done. This car and the cavalier had a
bad gasket on the PCM casing, allowing water to get in and destroy the
main computer. Screws everything up and puts most of these cars in the
junkyard long before 200k miles. Simple fix though, new computer, new
connectors. It's located underneath the passenger headlight, the
stupidest place to put it, so puddles kill the car and make it so it
will sputter and eventually die. EVEN IF THE DEALERSHIP SAYS IT'S BEEN
DONE, VISUALLY CHECK THIS!!!!! After I paid a dealership to do $400
worth of "general electrical work" that still didn't fix the problem, I
researched it myself and found that even though the recall had been
done, the guy botched the job and water still got in. SPUTTERING AND
THEN DEAD. Sound Familiar?
Air Spark Fuel and Brain
First make sure your Air filter is clean, and that it is able to ****
air into the airbox. If leaves clog the air intake cause it's near the
ground, no air, no combustion. Take off the cover to the air filter,
check the air filter, if it's black at all, change it, tan-light brown
can stay a little longer. Leave it on the top part of the air box and
try starting the car, so that the air that gets sucked in goes through
the filter but doesn't come from the air box, just the ambient air
around the engine compartment. If it runs without being contained in
the filter housing, then you either have critters, a critter nest, or
you sucked up a bunch of leaves that are blocking the air flow.
Compressed air, have fun with it. Getting air? Good, now is it getting
spark.
What you want to do is check if there's spark at all 4 plugs. You can
go to the auto parts store and pick up a spark plug tester that plugs
into the wires and clips to the engine and allows you to see the spark,
or you can do it the fun way. Remove one by one, clean em off with a
rag and test them by pressing the threaded side of them (obviously
don't touch the metal, use the wires to hold em) to the engine block
for a ground. Have someone try to turn it over for just a second, if it
turns twice, but you don't get a spark, verify it by doing it again. If
they're not firing, replace plugs and wires, try starting it. Test the
cam and crankshaft sensors and last the ignition coil-packs. If this is
the 2.2, they're on the back of the engine and accessible from
underneath.
If the plugs fire, great, now check the fuel. Get out of the car, take
the gas cap off, and put your ear to the hole while someone turns the
key on, without starting it, for 3 seconds then turns it off a couple
times. If you can hear the whirring sound, good, if not, check the fuel
pump, fuel filter, relays and fuses. Now the injectors.
Time for the voltage meter! Get a voltage meter that measures Ohms,
(symbol of a horseshoe) which is the resistance through something.
Unplug the injector, touch the two posts inside the injector with the
ohmmeter, and see what it says for each one. If the injectors don't
have the right resistance, they're bad and need to be replaced.
Here's the specs...
For 2.2L OHV engines:
1995 - 11.6 to 12.4 Ohms
96&97 - 11.8 to 12.6 Ohms
98 to 2000 - 1.95 to 2.3 Ohms
01 to 02 - 11 to 14 Ohms
For 2.2L OHC engines:
2002+ - 11 to 14 Ohms
For 2.3L (1995) and 2.4L OHC engines:
1995 (2.3L) - 1.95 to 2.15 Ohms
1996 to 98 - 1.95 to 2.3 Ohms
99 & 2000 - 11.4 to 12.6 Ohms
01 and 02 - 11 to 14 Ohms
If they give the right readings, test the connectors to the fuel
injectors with a NOID Light, available to buy or rent from most auto
parts stores to see if the injectors are getting the signal to fire. If
they aren't, the NOID Light won't flash and there's a problem with your
computer or the link to it. Visually check the PCM again and connectors
for corrosion. Once again, there was a recall on the PCM housing that
KILLS MOST OF THESE CARS. . Good Luck.
SOURCE: Car Sputters when I give it gas
sounds like you need a tune up. start with a fuel filter, spark plugs and wires. it would also be a good idea to run some seafoam through the gas to clean the fuel system after you put in the new filter.
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