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Fuel smell, overheating, engine dies.......what a mess!

I don't know if this is related or not , but bare with me. I had recently changed two o-rings for leaking fuel injectors. The mainifold and related connectors had to come off to get to the injectors. Fuel leak is fixed, drove it for about 80 miles, no problems. The next day I drove it for about 20 miles and the check engine light came on ( was never on before ). The coolant temp was on COLD. I get of the freeway, and the car dies at the stop light. Smoke is coming from the hood. The first thing I thought of was did I mess something up when putting everthing back together? Just as I opened the hood the reservior tank relieved the built up pressure through a small hole inboard of the cap. I lost a lot of coolant, the engine was very hot. It looks like I put everything back together ok. The engine was very slow to crank and could not get it started. After it cooled I started back up ( after adding water ) and drove in town. The temp gauge worked and the car ran ok till the temp reached half way up. After that it ran very rough and stalled at a stop sign and when I let off the gas. I could not keep it running long enough to see if it would overheat again. I dont know ? Its a 1997 3.5

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  • Contributor
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Take it to an auto zone or advanced tell then you want a code check they usely do it for free the use a code machine that hooks to th PIN harness under the dash they can read the code and tell you what the sensiors are saying about the engine and other related systems

Posted on Jul 26, 2009

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Your temp gauge stopped reading because coolant level had dropped and it couldn't read it anymore. Don't drive 'till you locate the source of the leak (likely from something you removed and either did not get a gasket in correctly or failed to tighten something.) Make sure that no coolant got into the engine oil and that you have at least a 50/50 mix of antifreeze.
It may also be a good idea to replace the thermostat now...they become unreliable after being overheated.

Posted on Jul 26, 2009

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First thing I'd do is change thermostat, fill cooling system back up with 50/50 solution, and make sure you run engine for a while with rad cap off, and top up rad as needed while doing so. Also make sure heater is on (not defrost) while doing so. Do not put rad cap back on until rad fan comes on & off at least 3 times, then top up coolant if necessary, put cap back on, top up return bottle to proper level & try it. keep an eye on return bottle level for first few days.

Posted on Jul 26, 2009

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