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Car cranks but won't start

Tiny
ASHMAN_0
  • MEMBER
  • 1990 FORD MUSTANG
  • 12,400 MILES
1990 Ford Mustang GT car had a bad fuel pump putting out 9 psi replaced pump and now the car won't start
Tuesday, July 24th, 2012 AT 9:39 PM

35 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It sounds like the fuel pump relay is not working. Turn the key on without cranking the engine over can you hear it in the tank? if not do the relay. Here are two guides to help you get started

https://www.2carpros.com/articles/car-cranks-but-wont-start

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know what you find.

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Tuesday, July 24th, 2012 AT 9:51 PM
Tiny
ASHMAN_0
  • MEMBER
  • 3 POSTS
I checked the entire fuel system all appears good. Disconnected the return at the tank cycled and got a return. Coil, plugs, wires, and according to your post the icm and the pip sensor and the eec relay. Exhaust pressure is strong enough I can't hold my hands over the tailpipes when cranking over. Ignition is firing to every plug.
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Wednesday, July 25th, 2012 AT 4:29 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Will it start with starting fluid?
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Wednesday, July 25th, 2012 AT 8:39 PM
Tiny
ASHMAN_0
  • MEMBER
  • 3 POSTS
I found out the timing chain let go because there is no compression. The guides helped me find it. Time for a rebuilt engine.
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Wednesday, July 25th, 2012 AT 8:49 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Nice work, we are here to help, please use 2CarPros anytime.
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Wednesday, July 25th, 2012 AT 8:53 PM
Tiny
MUSTANG7
  • MEMBER
  • 1 POST
  • 1990 FORD MUSTANG
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
My car will not start, it turns over but will not get spark, I checked and it is getting no spark to the plugs, the cellenoid is good and the little box that go's to the distributor is good, What else could it be?
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
CLEVA
  • MEMBER
  • 4 POSTS
  • 1990 FORD MUSTANG
Engine Mechanical problem
1990 Ford Mustang V8 Two Wheel Drive Manual

I had to take my car off the road for general maintenance mainly neew starter, spark plugs, wires distributor cap and rotor. Now keep in mind put gas in before hand now it will not start it will crank over but thats it. Found out I had to get a new ignition coil put that in but still will not start. What could be wrong so I dont have to go deeper in my pocket.
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Before we go deeper into the problem, was it runnung BEFORE the tune up?
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
CLEVA
  • MEMBER
  • 4 POSTS
Yes it was and running fine.
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Start with the basics, and work your way up, Last tune up was? Wires plugs ALL filters? If all that is ok, check for a stuck EGR, then test fuel pump pressure, If it won't restart, determine what's missing, the engine needs three things to run, Spark at all plugs, gas to all cylinders, and compression in all cylinders, tho an engine may run lacking one in one cylinder, it won't run very well!
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
CLEVA
  • MEMBER
  • 4 POSTS
I am getting fuel have spark just did the tune up when this all happened what else can I do?
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try spraying just a touch of starting fluid in the air intake to see if it will run for a second. If it does it could be either a weak fuel pump, or the ignition switch isnt activating the injectors.
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
HAISLERMAN
  • MEMBER
  • 2 POSTS
  • 1990 FORD MUSTANG
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 138,000 MILES
Replaced:
fuel pump
starter
fuel pressure reg.
Ingition module
battery

Will not start up.
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

If the vehicle will turn over and just won't start, have you check the Cap, Rotor, Plug, and Coil.

.
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
LEX9614
  • MEMBER
  • 7 POSTS
  • 1990 FORD MUSTANG
The mustang lx 1990's I have no idea what else the problem can be. Can you help? Iv set th ignition timer and the car wont start. The spark plug is getting compression and I have set t on dead center. What could be the problem? The engine that's in the car is a v-8 not a cylinder!
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If the ignition timing is set correctly and still no start-check for fuel and spark-refer to this link: https://www.2carpros.com/articles/car-cranks-but-wont-start
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
BRIAN24
  • MEMBER
  • 9 POSTS
  • 1990 FORD MUSTANG
  • 5.0L
  • V8
  • RWD
  • MANUAL
  • 100,000 MILES
I just put my car back together after I took apart the intake, valve covers, distributor, and disconnected all the spark plug wires. Now it will crank slowly and nothing really happens except it backfired a few times and that was it. Can't seem to figure this out, any help would be greatly appreciated
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your dist timing not your valve timing. It backfired so its probably out of time. See pic there are two on e for carb and other for fi
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)
Tiny
MUSTANGMANNA1988
  • MEMBER
  • 2 POSTS
  • 1990 FORD MUSTANG
Engine Performance problem
1990 Ford Mustang V8 Two Wheel Drive Manual

I have spark form the coil to the distributer and then no spark to any of the wires. I have now replaced the TFI mudole the starter syendoil and the cap and rotor I did them twice to make sure I didnt get bad ones. I am totally stumped and have no idea.
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Thursday, November 29th, 2018 AT 1:12 PM (Merged)

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