Question about 1989 Ford Mustang

Open Question

Starting yesterday nothing today

I have an 89 mustang 302 was sputtering out every so often and flooding sometimes. replaced
fuel pump checked fuel pump relay. now it wont start
at all. has spark. heard it might be
a relay above the ecm? how do i check this?

Posted by on


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

2005 mustang my car started to misfire sputtering while giving gas and when coming to a stop rpm go down to 500 then back to 1000 but only sputters just once yesterday bad maf or fuel injectors

if you have an obd scanner check the codes.....could be as simple as a dirty fuel filter...also shows symptoms of a failing fuel pump (electric, mounted inside tank)....If you dont have access to an obd ll scanner, take it to n Auto Zone, Murrays, Napa, Firestone, or Goodyear, they will usually scan it for free........good luck.

Apr 04, 2015 | 2005 Ford Mustang

1 Answer

Why does my 98 subaru legacy sputter and die?

Clean your MAF sensor and throttle body. If it's dirty it will send wrong voltage to ECU, running either too lean or too rich, most likely too rich and flooded the fuel injectors.

Aug 25, 2014 | 1998 Subaru Legacy

1 Answer

89 chevy s10 misfires and sputters when i give it gas, dies when i stop. Sometimes it runs fine, but recently it's just been bad. When i rev the engine it can stabilize the idle, but usually die

check fuel pump pressure- fuel filter --air filter --egr valve if carboned up clean or replace and cat converter feel the exhaust if feels restricted may be clogging up

Mar 30, 2013 | Chevrolet Blazer Cars & Trucks

1 Answer

1990 f150 302 v8 5.0 sputtered and died and now wont start. What could be the problem?

Turn the ignition switch to run, without starting it. You should hear the electric fuel pump, in the gas tank, run for about 3 to 4 seconds, until it builds to proper pressure. If it is not humming along it needs replaced.

Aug 03, 2012 | Ford Cars & Trucks

1 Answer

I have an 89 chev blazer, 4.3 2wd and after a couple few minute of running it will sputter in and out and die. sometimes i can keep it running (sputtering) if i feather the gas pedal but it still ends up...

can see your are realy into this and your discription is exellance. But i have to tell you something that you don't want to hear Its your fuel pump its an 89 its over due . Chevy had problems with these pumps in the 90s not some much in the 80s they olny lasted 10 years at best unless you have already done if or know the history of the vehicle what you have discribed is not electrical but fuel issues the blinking mil light going up hill under load its a give away . You can try pulling some plugs if the look white instead of a tan color then its the fuel pump . And by the way the fuel relay on this vehicle is not the olny power supply to the pump there is a back up power supply to the pump through the oil pressure sending unit so even if the relay was bad the fuel pump would still get power through the sending unit it runs of fuse #9 for the ECM and fuse and splits one side relay and the other oil pressure sending unit. I have wireing schematics but there for mid 90s but the system is vary close to the same . And i kow what a pain it is to do the fuel pump good luck my frieind

Jun 09, 2011 | 1989 Chevrolet S-10 Blazer

1 Answer

I have a 1999 chrysler concorde lxi 3.2 engine. sometimes during hot/warm weather is won't start after a few stops/starts. it acts like it is flooded. it will fire and sputter, but will not run. if i...

This could be leaking fuel injectors, a stuck Fuel Pump relay, and/or faulty fuel pressure regulator. Have you had any of these items checked and/or replaced? If not, it may be time to replace them. Also, check your fuel filter. If it hasn't been replaced in the last year, replace it.

Feb 22, 2011 | 1999 Chrysler Concorde

1 Answer

Why does my 89 mustang gt blow black on the grass an stals

your gas to air ratio is off. Too much gas not enough air,flooding,check if the gaskets are tight for the fuel area.

Jul 22, 2009 | 1989 Ford Mustang

1 Answer

Fuel pump relay

they are equipped with a fuel pump reset switch located behind the panel inside the trunk on the drivers side. Try hitting that button.

May 07, 2009 | 1992 Ford F150 SuperCab

2 Answers

Strong order of gas fumes and black residue on spark plugs

The jets in the carb are too big for a 302 with a stock cam. Take it to a carb shop and have them replace the jets with stock jets. (Or DIY and hope). Whne you converted from FI to carb did you replace fuel pump to get correct 7 1/2 psi pressure at carb inlet? FI pumps put out 50+ psi and a regulator maintians pressure at the injectors on the order of 35 psi.. Of course, that much pressure would force inlet needle valve out of it's seat and would probably flood carb totally, but, check the fuel pressure at the carb just to be sure. Good luck. 302's rule!!!!
PS - Check cam specs - FI engine has different cam - intake duration is longer if I remember correctly. Been a while since I got inside an engine...

Apr 27, 2009 | 1965 Ford Mustang

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

71 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

77169 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers


Level 3 Expert

5572 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides