Question about 1999 Lexus RX 300

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Car does not accelerate after it starts. Stops after some time. Checked the spark plugs. and the ignition as well

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Have you ck'd the MAF sensor? It's in a metal section of the intake duct. It can be cleaned withCRC electronic spray cleaner. Do not touch, brush or rub the sensor. Definately no compressed air. the spray dries quickly.. Good luck, Ned

Posted on Sep 28, 2009

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1983 Capri RS WONT START it is getting spark to the plugs and fuel turns over fine just wont start


Points or electronic ignition? Corroborator, or fuel injection? Was the car sitting idol for a long period of time, say, 6 months to more than 1 year? With a car that old, I would start with replacing spark plug and ignition wiring. Have you checked the spark plugs? Make sure they're cleaned and gaped. If corroded, replace them.

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My 1989 Nissan Navara wont start


Wait a minute. Points on an '89 Nissan? I think all Nissans had electronic ignition after about 1979 or 1980, so no points, but an electronic ignition module-or, igniter, as they call it.
Now you haven't said if you have checked for spark on any of the spark plug wires. If you have a good, blue energetic spark from a plug wire end when the engine is cranked over, your ignition system is good-look elsewhere for why it won't start-like is the pump coming on, and is gas up to the engine. If a weak or no spark, might be the igniter. Post back with your findings. And say if the car has a carburetor or throttle body injection?

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2006 mazda 6 bucking when accelerating


have u checked ur spark plug leads and spark plugs it all so be ur injectors

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2008 Nissan Coup engine shakes when accelerating gas. Car does not shake only the engine. Why?


it could be the ignition coils spark plugs or the timing, would have these checked.

Aug 13, 2017 | 2008 Nissan Altima Coupe

1 Answer

No spark when trying to start it


If can be the problem with spark plugs itself or the problem with faulty ignition coils,the spark plugs get power from ignition coils. Both the spark plugs and ignition coil voltage needs to be checked. This is many a times caused by weak battery or faulty battery, or can be possible that battery to starter connection is loose or faulty starter itself.First the battery to start and both battery and starter voltage needs to be checked and confirmed.If that is checked ok, then other possibilities like faulty spark plugs, faulty fuel pump etc etc needs to be checked. For more detailed troubleshooting,click the link below:--- http://howtobyme.blogspot.com/2011/10/car-troubleshooting-tips.html ---------- This should help.Thanks.Helpmech.

Oct 13, 2011 | 1993 Dodge Caravan

1 Answer

Renault Laguna 2 2001 1600 16v misfiring. Sluggish going uphill, makes a load clacking sound when the accelerator is pressed but stops when coasring, cuts out when it comes to a stop


Seems quite evident that the firing timing is OFF and the fuel tuning needs a check. The engine seems to hunt around when it is accelerated as it is pinking/knocking when powered. So please have the timing of the firing checked, check the electrical section of the ignition, check the spark plugs, the HT wires.
Now also make sure that the fuel pressure is good , the fuel is good grade and the filter is clean.

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1 Answer

1997 Mazda 626 2.0 DOHC New timing belt, dist., wires, plugs, crank sensor, air filter, cats, air intake sensor and sundry other little things. It dies suddenly on the freeway. It runs perfectly otherwise....


When the car stops driving, at that time check the starter, if its got very hot, then this can be starter over heating issue. There are many other things to be checked.

Try this troubleshooting: ----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, the problem may be due to any of the following:

1) A bad pickup inside the distributor, a stripped distributor drive gear (common problem with plastic distributor drive gears), broken, loose or corroded wires from the pickup to the ignition module or PCM. 2) A bad crankshaft position (CKP) sensor or broken, loose or corroded wires from the sensor to the PCM. 3) A bad ignition module or A bad ignition coil .

4) A bad rotor or distributor cap (cracks or carbon tracks that are allowing the spark to short to ground). 5) Faulty ignition switch.

------------

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. Possibilities to be checked in this problem are as follows:-- 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). But if the coil has voltage, then problem may be a bad high voltage output wire from the coil to the distributor, hairline cracks in the coil output tower, or cracks or carbon tracks inside the distributor cap or on the rotor. ------A car 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 car. 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 car. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. 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 car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car 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.

Jan 07, 2011 | 1997 Mazda 626

1 Answer

My car jerks while changing gears


Hi,

Thanks for contacting Fixya.com
Poor acceleration is because the engine timing is wrong i.e. the ignition is early or late.
A flashing check engine light means that something serious is wrong with the vehicle and you should not be driving it. Being that the vehicle sputters and jerks under acceleration, it is assumed that you have a failure in your ignition system. Always have the car scanned when your check engine light comes on to obtain diagnosetic computer codes. Most common failure is basic maintenance items, Spark plugs and wires. Simple enough to replace, and relativly cheap. Ignition coils, ignition module, and crankshaft sensor would also cause a severe misfire. again... both pretty simple to change, but these items cost more. Start by having the vehicle checked with a scan tool first.
Aloso check distributor timing and next timing belt depending on year and how many miles on this car you may need to replace the timing belt it can be a cause too.

Let us know if you have something more to know else please accept the suggestion.
Thank You.

May 31, 2010 | 1998 Toyota Camry

3 Answers

Do i need new spark plugs?


No, if your car is a automatic it is not going in to gear correctly. if you can automatically shift your car do that until you have it checked. most likely it is your transmission.

Jul 22, 2009 | 2000 Pontiac Grand Am GT

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