Ive a 2007 Shelby GT500 5.4 litre supercharged SVT model which Im having ignition system troubles with - AFTER some modifications

Asked by Jan 27, 2016 at 11:22 PM about the 2007 Ford Mustang

Question type: Maintenance & Repair

Ive owned the car since new and brought it home here in New Zealand 3
years ago having purchased it in the Arabian Gulf. About 3 months ago I
took the car to have some modifications done including fitting of a bigger
supercharger pulley and belt, a new cold air blower and performance
exhaust. The professionals that installed this equipment obviously did the
computer controller requirements needed to get the car operating well. After
the mods the car is fantastic. A lot more responsive and sounds fantastic.
Straight after the mods I found that after a day or two, the car refused to
start. You get in and turn the key (with clutch pedal down of course) and all I
got was a single click sound and no starter motor actuation. There were
other minor issues too.....the boot release switch wouldnt operate and small
minor electronic glitches that were not there before. I returned the car to the
Modifier who said that it was probably the fuses but also suspected an
"Electronic Controller problem". After a couple of days he claims to have
"recalibrated the controller" as best he could and fixed some "fuse issues".
The car started OK after repair and had been being going very well for just
over a month.....till a trip to a remote area with family this last weekend -
when again the same issue arose......no ignition and a single click noise
when trying to start.

I was able to crawl under the car and run a wire between the Solenoid and
starter motor to start the motor to get me home.....Its not a battery issue as
its holding a full charge and windows and locking work OK with the key
Fob....

This ignition problems only surfaced since the mods were done. I drove it for
about 6 years prior without issue with the ignition.

The Modifier already charged me considerably for fixing this issue once but
now claims its probably a "Controller fault issue and dust from the Gulf
problem that may require an expensive replacement Controller". He doesnt
recommend taking the car to an Auto Electrician because he claims
"disagnostic equipment will stuff up my newly modified engine computerised
settings"

I really need some further advice on this....Can anyone help me please?

2 Answers

2,795

The click sound your hearing is the starter, you ether got a bad battery, or the starter is not strong enough to turn the high compression you have now, I would shop around and look for a small block Windsor or Cleveland starter... HI TORQUE STARTER MOTOR 289 302 351 CLEVELAND & WINDSOR XW XY GT F100, ENGINE PARTS AUSTRALIA will sell you one..hope this helps....

2,795

Here it is..hope this helps

Your Answer

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,850
  • #2
    F_O_R
    Reputation
    1,400
  • #3
    Bob Beaman
    Reputation
    1,380
View All

Related Models For Sale

Used Dodge Challenger
691 listings starting at $7,925
Used Dodge Charger
64 Great Deals out of 730 listings starting at $1,600
Used Chevrolet Corvette
519 listings starting at $7,900
Used Ford Shelby GT500
22 listings starting at $37,999
Used Ford F-150
611 Great Deals out of 8,959 listings starting at $1,995
Used BMW 3 Series
173 Great Deals out of 2,078 listings starting at $2,500
Used Jeep Wrangler
105 Great Deals out of 1,944 listings starting at $1,990
Used Chevrolet Silverado 1500
172 Great Deals out of 10,490 listings starting at $2,230
Used Jeep Wrangler Unlimited
143 Great Deals out of 5,090 listings starting at $1,000
Used Pontiac G8
19 listings starting at $6,995
Used Chrysler 300
103 Great Deals out of 836 listings starting at $1,888

Used Cars For Sale

2018 Ford Mustang For Sale
52 listings starting at $29,438
2017 Ford Mustang For Sale
330 listings starting at $23,995
2016 Ford Mustang For Sale
91 listings starting at $16,995
2015 Ford Mustang For Sale
98 listings starting at $18,887
2014 Ford Mustang For Sale
137 listings starting at $12,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.