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About 3 weeks ago my 01 sonata just stopped in mid drive and has not started since. i have replace the fuel pump crankshaft sensor and timing belts and the car still wont start. any ideals
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there are 2 pieces to the crankshaft sensor...one is a little round thing that is mounted under the valve cover on the driver side. The other part plugs into this and the cable runs down under the other side of the engine. The sensor is inside the timing belt cover.
i had your problem a month ago and had the little round part replaced and that worked for me.
Firstly, what's a TDC sensor?.. the crank position sensor? If so, on the four (4) cylinder, it's located behind the timing belt cover at the crankshaft.. if it's the 2.5 V6, it's located behind the LH exhaust manifold on the engine block.
OK!... Tell you STRAIGHT UP!.. this is a GUESSING GAME online. Fuel Pump failure 'apparent'?.. Did anyone VERIFY it was the fuel pump? Unless you guys know what you're doing, you need an EXPERT's EYE and BRAIN on this one -- it could be almost anything!.. Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Once you do this and let us know what, if any codes are set, then we can go from there... otherwise it's a GUESSING GAME! There are too many possible causes which prevent a SPARK (i.e., fuse, ECM, Wiring, ignition failure sensor, bad CKP (crank position sensor), out of time, etc.
Hi there. I can solve this dangerous problem you are having. You would loose acceleration at lights and intersections, the engine will shake and revs can go crazy. The issue is the MAF (mass air flow) sensor. It was recalled in 2001 as a safety problem as people died driving this model of sonata. If you connect your comp up to a diagnostic machine you will find its the MAF the problem is a problem that is hard to ctah on a diagnostic machine though as it comes and goes. You will need to replace the MAF ASAP as you can die from this fault and hyundai will not care due to the age of this car.
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