90 Bronco Stalls when warm, Fine when cold.

2 posts 2 contributors 1,760 views

Member since Jul 2014
1 post
San Juan, XX, Puerto Rico (U.S.)
1 vehicle in the registry

Aug 2, 2014 at 5:59 AM

Help. I have a 90 Ford Bronco with a 4.9 300L that stalls after the engine warms to the point where the temp guage is at the 2nd line (still in Normal range). If I remove the Spout connector and insert it again it will fire up and maintain with a rough Idle. I have changed the Ignition Module, The ECM, the ECT sensor, the Fuel pump, Fuel pump relays and sockets, the Alternator pigtail and the Hego has been cleaned, It has had a tune up and still. What could be wrong here? It idles fine like new until it reaches that temp. Please help me here.

jdmeaux

Member since Jan 2009
525 posts
Lafayette, LA, USA
1 vehicle in the registry

Aug 2, 2014 at 6:50 AM

Start checking for vacuum leaks. Something is causing too much pressure or a serious leak,

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It's just a SUPER-DUTY Mustang GT Sedan. 198K miles and still rolling HARD.

1997 Crown Victoria P71 SVT *** ex-US Marshall service (the CAR)
STOCK?? I bet it was modified.

13.26 @ 107.24 MPH 1/4 mi w/ me, tools, & full tank of 93 octane

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