Can anyone tell me what the normal idle speed for the 4.2L V6 is? I have a 98 and it idles at @ 900 rpm when sitting in park and drops to @ 650 rpm when I put the auto tranny into gear. I have seen that the speed should be around 650 rpm but is that upposed to be with the truck in gear?

 

Thanks for all the help!!

 

no problem. any time.j/k
i am not sure i have a 5 speed.

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1999 XL, 2WD, standard cab, short bed, sport package, nascar package, bright red, V-6, 5 speed, Rockford Fosgate CD player, Pioneer 6x8. class 3 hitch, fog lights, Black Rhino Lining
http://www.geocities.com/bassbuster/truck.html

 

Thanks cooltrucks, Does your truck idle @ 900 rpm when you are in neutral? or is it @ 650 rpm?

 

Still looking for an answer on this. Can anyone help me out?

 

mine idles at 825 in neutral

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------------------------- 99 SILVER XLT/REG.CAB/4.2/5SPD/3.55/K&N/Dynomax Super Turbo/Westin Black Nerfs/SuperChip/Hellwig Rear Swaybar/Energy Suspension Front Swaybar Bushings and Endlinks/Trenz Billet Antenna

 

mine idles at 900 rpm all the time (out of gear,in gear w/clutch depressed) 1st start up of the day it idles at 1200-1500 for about 10 seconds then goes down to 900.

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2000 f150 4x4 sport,black, 3.55 5spd ,4.2 liters of fury ------mods----pioneer cd,alpine sub,cadence ultradrive amps,alpine mids&tweets,Delta tool box,class III reciever hitch,herculiner bed liner,taz floor mats,profile bug guard,custom painted tail light covers,headlight covers,cranked torsion bars,pirelli scorpion at(265/75 16), modified air box(crash1 style),JET air filter,blue cargo lights


www.lightningcrashz@hotmail.com

 

Thanks for the replies guys. Sounds like mine is acting normal so I won't worry about it. I did have a rattle that the dealer couldn't seem to fix and I thought it might be cause the engine was idleing so high. Turns out after 5 trips to the dealer I had to have new brushes and regulator put into mt alternator along with a new serpentine belt. I'll find out tomorrow if this worked whe n i start it up since it always seems worse in the morning when the engine is cold.

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1998 XLT, Super Cab,Pacific Green Clearcoat Metallic,4.2 L V6, Auto, 3.08 Gears