Question about 1991 Toyota Camry

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Sparkplugs hi can u help, how do i change spark plugs i cant even see them when i take leads off

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Pull the boots off and use an extension with your socket and "feel" for the socket to go over the spark plug, When you know have a good fit on the plug, use your ratchet and remove each one. Install the plug into the plug socket and again "feel" for the plug hole when your installing them.

Posted on Jun 12, 2008


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Is it possible to upset the timing by changing plugs and wires?

The timing in itself can't be affected by different leads and sparkplugs. The actual spark delivered in the cylinder differs when using other leads and sparkplugs than recommended by the Hyundai. This can go either way - better spark (high performance plugs) or less spark (lower quality materials).

Next to this leads can have leaks due to manufacturing faults. Simple way to test this is to open the hood when it's dark with running engine. Blue sparks are signs of leaks in the cables / caps.

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Plug leads are quite prone to damage on these cars particularly where the lead enters the spark plug connector, moisture gets into the connector and corrodes the wire. New leads will solve this problem. There is an alternative to check if a spark is being produced but this is very dangerous if you do not know what you are doing. Remove the sparkplug with lead still attached earth it on the engine and crank the starter. DO NOT TOUCH THE SPARKPLUG WHILST THIS TEST IS DONE. You shoud be able to see the spark jumping the gap in the sparkplug..

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How frequently should sparkplugs and plug wires be changed?

Plugs should be changed, depending on the make and model, every 10 - 20,000 miles. Your service manual should specify this. Usually, most vehicles recommend that you CLEAN at one service and CHANGE at the next, personally, for the price of plugs, I change every time, but that is probably overkill. If you are going to clean them, you will need to check the gap (You may well have to set the gap to suit your model, even if you are fitting new ones (Once again, it's a service manual question again, to get the correct gap setting). Leads will usually last anything between 50-100,000 miles. If the leads are clean, flexible, show no signs of wear and don't leak, then they are probably OK for now. A good check for spark leaks is to run the engine in the pitch dark with the hood up and look for tiny flashes on the lead anywhere. If you see any, its time to change the leads. You might prolong the life and reduce issues by spraying them with WD40. Just note that enev if you CANT see flashes, it doesn't prove they are OK, it just proves they are NOT OK if you DO see flashes.

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I am trying to replace my honda fit spark plugs and I cant even find them. Where are they on the2007 honda fit?

Maybe I can help you. I've found this video that shows how to replace ignition coils on a Honda Fit/Jazz. You'll see where the spark plugs are after removing the ignition coils. I hope it helps!

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To change sparkplugs in any car, no matter what make or model is pretty straight forward.

1, take one sparkplug out at a time, and put the lead back on this way you will not mix up the HT lead and the firing order.
2, repeat the process on all plug's and you will be OK!

All the best!!!

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1 Answer

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hi there the reason you don't see the plugs is that they will be under a coil pack or separate coils go are the days of plugs at the end of the plug lead there could be covers over them be logical the plugs will be in the head normally between the camshafts if it twin cam.
hope this helps you Regards JR

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1 Answer

How to change spark plugs on 2003 camry

Find out what your spark plug gap is, and the size of plugs you require from your owners manuel. Purchase a Spark plug socket for your rachett (also a rachett extension if you dont have one) And a set of Gap Measurers. Pull out the spark plug leads from the base making sure you don't pull on the cable (can damage the lead if you yank on the cable instead of the boot) and then screw out the old sparkplug and check for damage/wear. Set the gap on your new sparkplugs and screw them back in using a torque wrench for the final turn or if you don't have one only hand (do the final turn without using the rattchet just grab the wratchet extension and twist with your hand). 

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