motorman3 Posted July 31, 2023 Share Posted July 31, 2023 Hello, cylinder 2 won't start. I've changed the spark plugs, the coil pack, and the injector, but nothing works. I'm now ready to do a compression test, but I don't know how to start the engine to do this. Who can tell me what the best way to do this is? On a regular car, I'd pull the fuse for the fuel pump and turn the key. We'd be grateful for any help... Quote Link to comment Share on other sites More sharing options...
WhisperingWillow Posted July 31, 2023 Share Posted July 31, 2023 Is your automobile under warranty? Shouldn't a major dealer repair this? This is a worldwide topic, therefore please provide your model, age, and mileage. This belongs in your signature or avatar. Quote Link to comment Share on other sites More sharing options...
motorman3 Posted July 31, 2023 Author Share Posted July 31, 2023 Hello, the dealers would not look at it under warranty since it seems to have been misfueled in the past. It's a luxury 2018 Hybrid model from the United Kingdom. According to what I've heard, dealers may connect a diagnostic tool and put it to compression test mode, which turns off the gasoline, ignition, and cranks the engine to do the test. Is it possible to do a compression test on this automobile without purchasing an expensive scan/diagnostic tool? Quote Link to comment Share on other sites More sharing options...
WhisperingWillow Posted July 31, 2023 Share Posted July 31, 2023 Wow, what just happened? Do the early Ioniqs not have a filling tube designed for unleaded fuel only? For precisely this reason, they are much smaller than the normal size. I don't claim to know the solution to your query, but would a primary dealer at least respond to what seems to be a completely legitimate inquiry if they won't look at it? Quote Link to comment Share on other sites More sharing options...
motorman3 Posted July 31, 2023 Author Share Posted July 31, 2023 I'm not sure how the previous proprietor managed to misfuel it, but he did! Dealers are uncomfortable at the best of circumstances, so I will not even attempt to interact with them. I require the assistance of a hybrid expert to determine how to perform a compression test on the engine. I can't even directly power the starter motor because I just discovered there isn't one! Quote Link to comment Share on other sites More sharing options...
ElectricEclipse Posted July 31, 2023 Share Posted July 31, 2023 Do I have this wrong, or is it as simple as removing the coil pack(s), inserting a compression tester into the cylinder in question, and cranking the engine? Miss fuelling can ruin the fuel injector, so a second set of hands is necessary for a push-type compression test; alternatively, you can get a sense of the compressions by putting a bar or socket on the crankshaft bolt and turning the engine over with the plugs in; if one compression is down, it will be very obvious. Quote Link to comment Share on other sites More sharing options...
NAVITEL Posted July 31, 2023 Share Posted July 31, 2023 2 minutes ago, motorman3 said: I'm not sure how the previous proprietor managed to misfuel it, but he did! Dealers are uncomfortable at the best of circumstances, so I will not even attempt to interact with them. I require the assistance of a hybrid expert to determine how to perform a compression test on the engine. I can't even directly power the starter motor because I just discovered there isn't one! You bought the car from a dealer, correct? If so, then, unless they disclosed the prior history and informed you that it would void the warranty, they will likely be responsible for repairing, replacing, or refunding the item. If you purchased it from a dealer, you should consult Citizens Advice or Trading Standards regarding your rights under the Consumer Rights Act of 2015. Quote Link to comment Share on other sites More sharing options...
Gianni682 Posted July 31, 2023 Share Posted July 31, 2023 There is a lengthy write-up about starting the engine elsewhere on this forum. Quote Link to comment Share on other sites More sharing options...
nimbuye5 Posted July 31, 2023 Share Posted July 31, 2023 I once pressed the gas accelerator while my PHEV was On and in Park (while rotating around to stretch and reach something from the trunk), and to my astonishment, the engine started and revved. If it works for you, you will be one step closer to obtaining a measurement... Quote Link to comment Share on other sites More sharing options...
motorman3 Posted July 31, 2023 Author Share Posted July 31, 2023 If the spark plugs and the fuse for the fuel pump are removed, the engine will not start to do the compression test. I believe I'll need to consult with a hybrid specialist. A more sophisticated scan tool with a compression test may be required... Quote Link to comment Share on other sites More sharing options...
mrnobady Posted July 31, 2023 Share Posted July 31, 2023 Found this site to be quite beneficial. Supposedly, the Mk5 is slightly longer and slightly narrower, but with the mirrors retracted. At least in the guise of an estate. https://www.carsized.com/en/cars/compare/ford-mondeo-2007-estate-vs-ford-mondeo-2014-estate/front/ You also cannot select the Mk3 presumably because it is too ancient. Quote Link to comment Share on other sites More sharing options...
allmightyASTON Posted July 31, 2023 Share Posted July 31, 2023 Hi When I upgraded from an MK3 to an MK5, I did not really notice an increase in breadth, and my MK5 has an improved back camera. The biggest difference is how much longer the vehicle feels. Only model I'm aware of where the five doors extend beyond the estate. I really need to get around to installing a front camera since I often park further away from the curb to avoid damaging the valance, which leaves the rear of the vehicle protruding. When I reverse, I do sometimes get confused about where to look. View the left mirror. Right mirror look? View the camera? Most of the time, you just need a camera to make sure that no jerks try to stroll behind a moving vehicle. Probably just an age issue. Quote Link to comment Share on other sites More sharing options...
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