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No spark was doing 70 and it just quit - Suburban 2500 Chevrolet Cars & Trucks

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Check you ignition coil

Posted on Oct 05, 2009


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I have a 1999 dodge ceruis. I quit running going down the highway at 70 mph. It was very low of oil. Do the have a ciser shut down system

You are fortunate that the engine still cranks. If it overheated when it shut down it is possible that some of the electrical components may have been burned out.

And if you did permanent damage it is possible that now the engine is not cranking fast enough to start.

Good luck.

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If it has good spark why wouldn't you look at the fuel system?

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Backfire at 60 to 70 mph

Check for bad fuel, but it sounds like it might be spark plugs or spark plug wires breaking down and cross firing or missing. If it is electrical you should have a rougher idle also.

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Why does my Mercury Grand Marquis quits running at high speeds

Have you checked fuel pressure, and has the fuel filter been replaced ?

Jun 21, 2013 | Cars & Trucks

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My 2006 Freestar was hesitating (or sort of jumping) at around 70 km/h and then yesterday was doing the same when I got tried to excellerate at about 100 km/h (on the highway). By the time I got home it...

Sounds a lot like the fuel pump for a starter. When it acts up does the vehicle jerk or buck before picking up speed? I have also had the experience with just one spark plug wire or plug bad. You can check this by pulling each wire one at a time while engine is running. If the motor slows that plug and wire are fine. If no change in rpm check the plug and wire.

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Can i change the tire of my 1990 model to 245x70x16?if not what is the biggest tire size that i can use?tnx

That is quite a large change from stock. It will offset you speedometer, cause breaking issues, and could cause the vehicle to be unstable in handling and cornering. The largest it is recomending is 225/70/15. I could see going 235/70/15 with a very mild offset to the speedometer(not enough to worry about). They do make a 215/70/16 but you loose your width and grip and the price is more substancial. The ones listed above are better for longevity and price overall.

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When outside temp. gets above 70 degrees, car will quit running

First thing to do is find out what is missing when it dies, spark and plugs or fuel at the injector.
The next time it dies out, have him pull a spark plug wire off, crank the engine over and see if the ignition system makes a nice snapping spark. If that is good, you will want to get a fuel gauge and install it and test the fuel pressure, should be around 30 psi. Once you figure out which one it is we can go from there.
Good luck.

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1 Answer

No spark from coil.

Please take a look here:
No spark
This may be a series problem.

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