Clacking when acclerating from stop - GrandMarq.NET

Brooklyn · 02-07-2010, 02:51 PM

So, when I am at a stoplight idling for a minute, and then accelerate decently there is a "clacking" sound from the engine bay for a few seconds and then it goes away. I am thinking it is a lifter starved for oil, but do you guys have any ideas?

Thanks!

**gadget73** · 02-07-2010, 03:48 PM

Check the timing. If its too far advanced it will ping, sounds kind of like a paint can being shaken.

Nathan in MI · 02-07-2010, 07:21 PM

There's also the possibility that you have a dead motor mount and the fan is hitting the shroud when the engine torques up. Have a look at the fan shroud and see if it looks like the fan has been hitting it anywhere.

Pirate · 02-09-2010, 01:27 AM

I personally think you have one of these jammed into your fan belt somewhere:

1987cp · 02-09-2010, 07:46 AM

When I had that symptom once, it turned out to be coming from a transmission that was slipping in a weird way. You'd probably know if it was coming from the driveline instead of the engine, though.

02-07-2010, 02:51 PM	#1
Brooklyn Member Join Date: Oct 2009 Posts: 20	Clacking when acclerating from stop So, when I am at a stoplight idling for a minute, and then accelerate decently there is a "clacking" sound from the engine bay for a few seconds and then it goes away. I am thinking it is a lifter starved for oil, but do you guys have any ideas? Thanks!

02-07-2010, 03:48 PM	#2
gadget73 small engines suck Join Date: Jan 2005 Posts: 18,251	Check the timing. If its too far advanced it will ping, sounds kind of like a paint can being shaken. __________________ 86 Lincoln Town Car (Galactica). Drivetrain: 5.0 HO, Explorer cam, FMS 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley, SuperCoupe stall converter Suspension: Bridgestone Protenza G019 225/60/16 on LSC turbines, 1 3/16" wagon front bar, 1" PI rear bar, cargo coils, KYB GR-2 front shocks, F150 rear air shocks, big front brakes, ES poly front suspension bushings, 00 CVPI steering box, ES poly body mounts, rear disc brakes 91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks.

02-07-2010, 07:21 PM	#3
Nathan in MI Working with half my brain tied behind my back just to make it fair Join Date: Sep 2011 Location: Big Rapids, MI Posts: 7,369	There's also the possibility that you have a dead motor mount and the fan is hitting the shroud when the engine torques up. Have a look at the fan shroud and see if it looks like the fan has been hitting it anywhere. __________________ 2001 Ford Crown Victoria P71 - "The Fire Engine" But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8

02-09-2010, 01:27 AM	#4
Pirate The Original Happy, Go-Lucky Pirate Join Date: Nov 2004 Location: Reading Shakespeare Posts: 6,622	I personally think you have one of these jammed into your fan belt somewhere: __________________ Daily Quote: “Why can't you find one single Democrat member of congress who is running for reelection by bragging on his vote for ObamaCare?” - Neal Boortz

02-09-2010, 07:46 AM	#5
1987cp Irish-American Dingo Whacker and Certifiable Retrogrouch Join Date: Dec 2006 Location: Mid-Michigan Posts: 13,417	When I had that symptom once, it turned out to be coming from a transmission that was slipping in a weird way. You'd probably know if it was coming from the driveline instead of the engine, though. __________________

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