Having problems with your 2000 Pontiac Montana ?

Misfiring 0n 3 & 6 changed coils spark plugs &wires even the base the coils go on servece engine light stays on while ildling but flashes when driving

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

I would check for vacuum leaks around the area of those cylinders.
Repair Help & Product Troubleshooting for 2000 Pontiac Montana

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Misfiring 0n 3 & 6 changed coils spark plugs &wires even the base the coils go on servece engine light stays on while ildling but flashes when driving


I would check for vacuum leaks around the area of those cylinders. ... 2000 Pontiac Montana

The problem i am having is that the motor has a knock sound to it. If i drive the motor smooths out and the check engine light flashes. As i let off the accel., it stays smooth until the rpm's get low again. When i park the car and put it in park, the check engine light stays solid. I plugged into it and got a code p0303. Cyl. 3 missfire. I pulled the coils out and bracket as well as the alt. i pulled the #3 plug and found it gapped at 62 with no electroyd left and plug is burnt. i pulled cyl. #


HI. WELL YOU GOT A GOING ON THERE. FRIST YOU SAY THAT THE ENGINE LIGHT COMES OFF AND ON. I THINK AFTER READING YOUR PAGE THAT MAYBE YOU SHOULD PUT SOME PLUGS IN IT MAYBE SOME THICKER OIL WITH SOME OIL STABALISER . JIMBO ... 1999 Oldsmobile Silhouette

Had tune up done on my 96 century new plugs,, wires fuel filter to solve a mis fire. Replaced coil pack on same cylinder. Runs fine until it warms up then the engine light starts flashing, and it seems to keep missing, and if you give it alittle gas the light stops flashing but stays on. Drive it a little and when you come to a stop light flashes starts to shimmy hard.


You could have a bad tork converter clutch and you could have a bad injector. also the new wire or plug could be defective but is not likely. Did you gap the new plug? ... 1996 Buick Century

My engine was running fine in my 2000 ford taurus 24v dohcand i washed the motor and now it says missfire on cyl 1 an 3 i took out all the coil packs and blew out the water in the holes with compressed air and been driving it and its still doing it an the engine light stays on, or flashes then goes on steady... ??? i give up


Codes need to be erased you tripped a codego to your mechanic and give him a couple of bucks to clear the codes ... 2000 Ford Taurus

I have replaced the fuel pump and filter, plugs and wire,one coil pack,mass air flow sensor,egr valve,had catyllatic coverters checked. the truck has lost power the check engine light stays on and flashes at highway speeds it feels like it is missing cutting in and out or has a hesitation when driving the higher the rpms the more hesitation you get with the new stuff on the truck it still pulls the maf sensor and egr valve engine code p0101 and p0404 and all the parts were brand new


Well it is a missfire the timing may be the issue here ... 2002 Chevrolet Silverado 2500HD

I have a 2005 nissan altima v6 and i have had the engine light on for months now taken it to sevral mechanics and no one can figure out whats wrong with it except for the fact that its missfireing . My car shakes when its been driven for 30 mins or more and if im driving for a portion of the day my engine light will flash but only when its in park as soon as i switch it to drive my engine light stays on but stops flashing . Ive put so much money into this car trying to fix it and its getting me


I would need to know the actual codes to comment. If the mechanic that checked it knows there is a miss, he should be able to find the reason. It could be an ignition or fuel problem among other things. The check engine light flashes when the prob ... Cars & Trucks

I have a 2006 jetta gli turbo with about 82000 miles on it about four months ago the check engine light came on but nothing noticeable was going on with my car or the drive. recently when it started getting colder out when i would start my car the check engine light would start flashing the engine would rev up right aobut the 1 RPMs and then after about 20-30 seconds of idle it stops shaking and drops down below the 1 RPMs and the check engine light stops flashing but stays on. occasionally as w


HiYou need to go to a shop with a code reader. The check engine light was telling you something and you need a code reader. Depending on which country you are in, if in the states autozone may have it for free.Whatever initiat ... Volkswagen GLI

Misfire I have a Vw jetta and am having troubles. The engine light is on with a code that keeps coming back, P0422, P0300, P0301, & P0304. It has a new coil from NAPA, plug & wires have beem checked, The engine hunts for RPM from 800- 1200 first start when cold. check engine light will flash and trip the codes. Rev the engine a few times when cold seem to clear it, reset the light and you may drive for several miles before trips agin. mostly when driving it will only trip the P0422. As a note th


442 check or replace gas cap,with NAPA parts I had problem. ... Cars & Trucks

I have a 2001 Jeep Cherokee Sport. The Yellow engine light is flashing on it. In the past it would just go on and stay on. If I would drive it for a while it would go off or if I disconnected the battery it would stay off for a while. Now, if I try to disconnect the battery the engine light will come on and and flash. Let me know if you need more info, but any suggestions you have of what it might be please let me know.


When check engine flash it means if you continue to drive you might damaged the catalytic convertor normally the engine is not running on all cylin der check it out and let me no good luck .pierre ... 2001 Jeep Cherokee

Where is the oil pressure sending unit on a 1999 Isuzu Rodeo 4 cylinder engine ? On Occassion, after driving for a few minutes, the oil pressure indicator light will flash and sometimes stay on. Usually, if I shut the engine off for a few minutes and restart the engine, the light will be off and stay off. Does the oil pump have a screen that may be dirty or partially clogged ?


Sender unit is situated on the LH side(if you're sitting in the\015\012vehicle) of the cylinder block ahead of the starter motor. Problems\015\012with oil pressure are rarely because of a faulty sender. Your problem\015\012starts once the oil has hea ... 1999 Isuzu Trooper

Code reads egr valve/sensor problem. My check engine light recently starting flashing (instead of just staying on). I notice when it is flashing a shutter in the car and more difficulty driving. Also when the check engine light is flashing the air seems to get hotter. What's wrong?


EGR Valve failed,causing the MIL Lamp to come on and car to slam and ****, going up hills,that is when you have a high vacuum load on engine. May seem like a trans problem. ... 2004 Lincoln LS

I have a 2000 vw new beetle that has an eletrical miss specially when i start the car after being cold.the spark plugs and the spark plugs wires were replaced but the miss is still present.one of the coils in the coil pack is a little bit weecker then the rest.the question is why when the engine is cold the miss is worse and the check engine light keep flashing untill the car is warm than the check engine light would stay on.and what is the solution. thank you


Check the resistances of the coils, check both hot and cold, If you have a greater variaton on one of the coils then the other change that coil. The reasoning does not always have to make sense. Logically the coil would be weaker the warmer the engin ... Volkswagen New Beetle

When driving my 2005 Toyota Corolla, the oil light starts flashing and eventually stays on. The car is making noise... vibration? ... but it doesn't sound good. Then it stalls. I start it up after a few minutes, it's okay, then repeat: oil light flashes, then the oil light stays on, the car gets loud, steering wheel is shaky, then the car stalls. Checked the oil and it's full. Brought it to a mechanic, and they changed the engine's air filter and spark plugs, and said I wouldn't have any m


... 2005 Toyota Corolla S

1999 dodge intrepid es.just bought, previous owner had rebuilt engine puta few months ago. ABS light came on when we test drove. Took car to neighbor mechanic and he said we have to flash the system. My Daughter drove the car to visit grandparents in Palm Springs and while driving rpm went up twice then engine died. Waited a few minutes and after 2 tries the engine started and the check engine light stayed on. I am not with her, should I send her to the Dodge dealer since the engine light is


To save monies I would tell my daughter to go to an auto parts store and let them scan the code, then once the problem is found someone there may be able to put the part on for her or fix whatever problem there may be. Hope this helped Tim ... 1999 Dodge Intrepid

Rough idle I just changed my spark plugs and the EGR valve in my '96 tahoe and finally got the check engine light to turn off. But then I was driving on the highway going up a hill, the engine started running rough and the engine light started flashing. It ran better at the top of the hill but the light stayed on but when I turned it off and turned it back on after a while the light was off . It happened to me a couple of days ago and it hasn't done it since. If the light goes on I can check it


... 1996 Chevrolet Tahoe

The check engine light would stay on and sometimes flash--the car would run badly. I replaced faulty spark plug wires and the ignition coil. Now the car runs VERY poorly and the check engine light flashes after about 20 seconds. How do I reset the ECU? Is this the problem?


The wires and coil was a just throwing parts at it ,for no reason. Try disconnecting the battery to see if the codes clear. You will need to scan for the code if it comes back and proceed with the proper diagnotics to find the issue with the engine p ... 2000 Hyundai Accent

The check engine light (MIL)on 2003 Audi quattro 3.0 stays on when car is running. Goes off sometimes on its own and then comes back on but it doesnt flash. When driving at high speeds( 120 kms or over), the check engine light starts flashing for 5 seconds and then stops.


THE LIGHT IS STORING A CODE IN THE PCM.NEED TO HAVE THE PCM READ BY A SCAN TOOL .ONCE U HAVE THE CODE U WILL FIND OUT WHAT CIRCUIT THE PROBLEM IS IN,. ... Audi A4

Turned on my car, check engine light was on. put it in drive and it started flashing and feeling like it was going to stall. I turned on my a/c and almost lost all power. if i put in in park and turn off the a/c, the check engine light stays on instead of flashes.


HIbefore you check it by diagnoses scan tool ?it was a misfire detected problem ??it cause by :-**spark ignition plug **ignition wiring **fuel system **fuel injectors **mechanical fault ask me ... Hyundai Accent

Service engine soon light flashes at 20 mph while driving ,i have change the spark plugs and coil pack and my service engine soon light is still flashing what is the problem


... 2000 Cadillac DeVille

Transmission problems hello, i hope you can help me even ford are baffled! im living in geramnny so maybe they dont have the right expertise, but ill explain it to you as best i can. My 97 windstar has the engine fault light on constantly, in the morning when i move off it takes an age or a lot of revving to change up, when it eventually does the O/D button flashes, after a few minutes of driving eveything is fine? i stop the engine restart and she drives fine, but warning light stays on. just r


This van has a problem with the alternator. spikes in the voltage regulator will cause the trans computer to go into failsafe mode. have the alternator scoped or replaced. ... 1997 Ford Windstar

I have a 2007 dodge magnum sxt 3.5lt v6...recently the etc light came on and also the check engine light. the light was flashing when it came on while driving, when you turn the vehicle off then turn the key to the on position all the dash lights come on like normal and then shut off one by one, like normal....but the etc light and the check engine light stay on until you start the car....i have not had it scanned yet so i don't know what the codes are, i plan on having it scanned today....just


... 2005 Dodge Magnum

I heard a pop as I was driving and the engine light came on and subsequently started to flash. I changed the plugs and cleared the codes. Two days later, the light come on and started to flash again, and I changed the coils and cleared the codes. The next day, the light came on flashing again, and I performed a compression test, recording 150 in each cylinder, and cleared the codes again. Two days later, the same codes returned. I am now considering a timing belt job, but I need another opinion.


First before going into it that deep, what year and model? Get the codes instead of just clearing them and let me know. I can advise you on how to proceed without throwing parts at it. ... Chrysler PT Cruiser

I have a 1999 Ford Explorer Sport SOHC. Check engine light came on and started flashing. Took it to have it checked. They told me engine misfire in a couple different cylinders and o2 sensor. I changed all plugs and wires, put a new coil pack and a new o2 sensor. Also cleaned throttle body and air filter. Used gas treatment. Still having same problem with check engine light. Also idles rough and is very sluggish. Doesn't stay on when idling at light or stop sign. What else should I do?


Fuel filter,module. ... Cars & Trucks

P0300 code reading on Chevy aveo. Engine light flashes and stays solid intermittently. While driving on the freeway, engine suddenly cut off. Tried to restart. Could hear the starter turning but engine would not respond. After a few minutes engine started, but engine light was still on.


Pull out your spark plugs. Change them if dirty. There might be a problem with the fuel trim, thats causing spark plug to foul up prematurely. A stucked open EGR valve can also cause a multiple mispfire code(P0300) but then it would be accompanied by ... 2005 Chevrolet Aveo

I have a 99 marquis. My engin light has been on for awhile because of an evap leak. When I was driving 70 mph on the freeway it started flashing. I tried counting the flashes but I was driving so I might have miscounted but I think it flashed about 8 times. Is that a specific code? Please help I don't have the $90 bucks for a diag test. Also it does have a miss in it would the flashing indicate what coil is bad?


Not a specfic code, but it means the problem is more serious and needs to be repaired now. The flash was probably from the engine misfire. Scan for codes and repair it before further, more costly damage occurs. ... 1999 Mercury Grand Marquis
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 4.2427 seconds