What could be causing my 2003 ford f150 4.2 v6 to rattle at 60 mph but not driving around in the city?

Asked by Nov 12, 2015 at 12:59 AM about the 2003 Ford F-150 XL Extended Cab Stepside SB

Question type: Maintenance & Repair

It rattles when Im cruising at 60 mph, sometimes when I give it gas it will stop but when I gradually accelerate it will rattle

2 Answers

90,865

Any number of things could cause this, bad fuel, running too lean, a sensor misread, ECM spark over advance, EGR flow low, I would try running some SeaFoam in the fuel tank first to clean up the injectors, if it still rattles or pings you may need to have the system "live data" scanned to look for incorrect sensor readings. Note: a lot of fuel stations have started using winter fuel grade fuels if this has just started after your last fill up then put in the next grade up and see if it goes away.

57,005

If the rattle is "ping" then try a higher grade gas and see if it stops. If so then you have detonation.

Your Answer

Add photo

Related Questions

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 7,690
#2 dandyoun
dandyoun
Reputation 4,330
#3 tennisshoes
tennisshoes
Reputation 2,690
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,749 Great Deals out of 169,652 listings starting at $1,800
Used GMC Sierra 1500
813 Great Deals out of 66,978 listings starting at $1,499
Used Dodge Ram 1500
446 Great Deals out of 11,377 listings starting at $700
Used Ford F-250 Super Duty
338 Great Deals out of 47,620 listings starting at $1,795
Used Toyota Tundra
479 Great Deals out of 34,015 listings starting at $3,000
Used Toyota Tacoma
516 Great Deals out of 39,804 listings starting at $1,995
Used Ford Mustang
389 Great Deals out of 47,145 listings starting at $1,999
Used Nissan Titan
179 Great Deals out of 18,696 listings starting at $3,950
Used Chevrolet Colorado
227 Great Deals out of 23,616 listings starting at $2,200
Used Ford Explorer
812 Great Deals out of 74,863 listings starting at $1,200
Used Chevrolet Tahoe
572 Great Deals out of 27,580 listings starting at $1,500
Used Ford Ranger
190 Great Deals out of 5,998 listings starting at $1,500
Used Jeep Wrangler
280 Great Deals out of 18,673 listings starting at $2,995

Used Cars For Sale

2017 Ford F-150 For Sale
19 Great Deals out of 125,571 listings starting at $15,741
2016 Ford F-150 For Sale
121 Great Deals out of 21,938 listings starting at $18,897
2015 Ford F-150 For Sale
182 Great Deals out of 7,524 listings starting at $10,999
2014 Ford F-150 For Sale
373 Great Deals out of 12,456 listings starting at $7,995