turn over but will not start.

rabbit48
0

Asked by rabbit48 Jul 19, 2011 at 09:41 AM about the 1995 Ford Thunderbird LX

Question type: Maintenance & Repair

2 Answers

Christina Kinley
45

Check fuel pump..turn ignition to on position..should hear a hum/bzz sound. Also, be careful tring to start it over and over...it could have broken a timing belt...

97TBirdOwner
45

Follow the posts / thread under the 1997 Thunderbird that would crank but not start while the radiator cooling fans were running. Read and study what people posted there. You are correct about hearing the fuel pump run for a second or so when you first turn the ignition key to the "run" position from the "off" position. The fuel pump will time out and shut off if the PCM does not sense that the engine is turning. This is a safety feature to shut off the fuel if you are involved in a crash and the inertia switch in the trunk is not tripped. Keeps you from having fuel pumped onto the engine in the event of a broken fuel line from a crash. The 4.6 liter V8 engines in the Thunderbirds do not have timing belts - they have two timing chains - one for each camshaft. Remember that an engine should start and run with the following: fuel, air, compression, and spark. These all have to be within reason to get the engine to start and run. So, if you have fuel rail pressure, if the injectors are being pulsed by the PCM you should be getting fuel delivery. If the PCM is able to read the crankshaft position correctly, it should be able to communicate to the ignition module (a bit fuzzy on the exact way Ford does this, as mine have just worked) to provide spark at the correct time. There should be air drawn in through the throttle plate and the IAC (idle air control) to mix with the fuel to burn. Just keep everything in perspective, and remember what it takes for an engine to start and run, and you should be able to sort it out.

Your Answer

Add photo

Related Questions

  • Starting Problems 4 answers

    To add to my previous qustion. When I turn the ignition key to start nothing happens. What should I check next.

    1965 Ford Thunderbird

    -

    Maintenance & Repair

  • Will not start 1 answer

    Just changed spark plugs, gap .054, new engine oil, starter. Drove 3 miles and did not start. Turns good, good battery. All lights ok.

    Ford Thunderbird

    -

    Maintenance & Repair

  • trouble starting 5 answers

    i have a 1977 thunderbird and ive been having issues getting it to start. it turns over fine, and im getting fuel to the carburetor. but it seems to have a mind of its own on when it will start. som...

    1977 Ford Thunderbird

    -

    Maintenance & Repair

  • dashboard ingition lights on when key is turned aniclockwise WHY? 8 answers

    I have a 1963 Thunderbird that works fine, when I turn the ignition key clockwise everything is fine, the engine starts etc. , then when I turn the key anticlockwize it turns off correctly BUT if I co...

    1963 Ford Thunderbird

    -

    Maintenance & Repair

  • Starting Problems 1 answer

    Replaced the starter solenoid. Car will turn over and start when I bypass it. It did start and run but the starter kept cranking as well. Any ideas as what to try next?

    1965 Ford Thunderbird

    -

    Maintenance & Repair

Search Ford Thunderbird Questions

Ford Thunderbird Experts

#1 Tom Demyan
Tom Demyan
Reputation 940
#2 oldtimer37
oldtimer37
Reputation 830
#3 tennisshoes
tennisshoes
Reputation 590
View All