fuel pump failure symptoms?
hey what are common symptoms of fuel pump failure/getting ready to fail? i've got a rattle/ticking noise that comes from the rear of the XJ whenever i startup or when it idles. If i'm at a stop, once i start rolling i get a rattle that picks up the pace as i accelerate until i hit about 35mph. i'm just wondering if it might be the fuel pump since nothing visible is making any sort of contact under the xj near the rear. I thought it might be the exhaust at first since my eclipse did that for a while and the exhaust was the culprit but the exhaust is free and clear of anything metallic that could rattle. am i right in diagnosing the fuel pump or am i way off? also, it primes when the key is in on position and there are no fuel problems other than my guage dropping about a quarter of the way down when i hit the gas (if i'm at full tank, it will read full, but as soon as i hit the gas pedal the needle drops down to 3/4), then slowly climbs back up to wherever it just was as its cruising.
[B]1989 Jeep Cherokee Laredo - "Ironhide"[/B]
Rattlecan Black paintjob, trimmed fenders/deleted flares -[B]dropped rear driveshaft - currently a 2 ton paperweight[/B]
[B]1993 Jeep Grand Cherokee - "Purple Haze"[/B]
4.0, Stock everything, girlfriend's ride, Girly Purple/silver paint (Girlfriend's)