i have same problem but only when its really really cold outside, same truck 2000 xlt 4.0 5 speed and i have 120,000miles, ive been wanting to ask this question but keep forgetting
i know this doesnt help but i wanna know the solution too hah
2000 XLT 4.0 OHV 4x4 Manual. Superlift 4"
Custom 2.5in CatBack courtesy of Hanksville Hotrods
K&N FIPK. Goodyear Wrangler MTR's LT305/70R16 Load range E diesel tires! about 34" diameter
16" Pro Comp 7069's cast aluminum. 4.56 with Detroit rearend