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How do I know if my 2001 Ford explorer has an interference or non-interference engine?

The timing chain on the front of the engine slipped 2 links and I am trying to find out if the engine is an interference or non-interference engine.

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: 2001 Ford Sport Trac - Front & Rear Timing Chains

The rear timing chain (or "cassette" as it's called in Ford lingo) is the chain that drives bank #1 (passenger side) cam. The front timing chain drives bank #2 (driver side) cam. There is a also a primary "jackshaft" chain that is driven by the crankshaft in order to enable both banks to be driven through a common shaft. The reason for this peculiar layout is because this engine is a "derivative" of the 4.0L OHV V6 engine it replaces. Ford simply installed a dummy shaft in place of where the camshaft used to reside on the original OHV engines. But above all else, the job you describe SHOULD NOT be carried out by anyone unfamiliar with this particular engine. There are NO timing marks on any of the drive sprockets, nor are they key to their corresponding shafts. To time this particular engine requires use of FIVE dedicated Ford/Rotunda tools that hold all relevant parts in proper position. Failing to carry this procedure out correctly, will result in the bending of ALL valves with 100% certainty!!! Therefore, it is best left to a Ford dealer technician to carry out. If you would like more information regarding diagrams, TSBs, and procedures with detailed illustrations, please e-mail me directly with your FULL Yahoo e-mail address so I can attach PDF files. Hope this helps.

Posted on May 18, 2008

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proJekttaLon
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SOURCE: 99 pontiac grand am 2.4 timing chain

Yes, that model is an interference motor. Most of the pontiac grang am's and grand prix's are. Sorry, I'm sure that was the answer you didn't want to hear.

Posted on May 25, 2009

  • 701 Answers

SOURCE: timing belt broke -2000 ford focus zx3

Hello mawbea: My name is Roger I will answer your question. You did not say which engine is in your car. So if you have a 2.0 SOHC engine. If the belt broke you should be Ok. If you have the 2.0 DOHC engine. The likely hood of bending the valves are just about a guarantee. How ever with any engine using a timing belt it is possible to bend a valve.Should you need more help please just ask.
Please rate the quality of your answer as this way we know you received helpful information.Thank You for using Fix Ya, Roger

Posted on Jul 08, 2009

  • 1149 Answers

SOURCE: I have a 2000 ford focus 2.0 zetec dual overhead

all Zetec engines (2.0 DOHC) are NOT interference engines. There are deep reliefs cut into the top of the piston to clear the valves when they are fully extended. There will be no valve damage if the timing belt breaks on a Zetec engine.

Posted on Oct 29, 2009

BCAS1298
  • 3092 Answers

SOURCE: Does my 2001 3.3L V6 EFI Nissan Xterra have a non

It's has a timing belt, also it's an interference engine, if belt goes bad it will bent valve's .

Posted on Nov 24, 2009

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2 Answers

Does this car have an interference motor?


ford escort/ focus engine 2.0 l spi sohc 1997-2004 has been identified as an intereference engine and that means very likely valve to piston damage
( auto data timing belt information )
note-- up to 2002 year Ford has not recommended a timing belt interval for changing
Ford has however recommended a replacement every 120.000 miles using the service history as a guide
however good professional trade practice recommends every 60.000 miles ( 100.00klms) and the replacement work should include replacement of the crank and cam shaft seals and idler pulleys involved ( the biggest destroyer of belts is oil)
recommended labor time is 2 hours
if the belt has broken then head removal and valve work will add up to 5 hours to that time

Feb 25, 2016 | 2001 Ford Escort ZX2

1 Answer

My timing chain has snapped


I assume it's your timing belt, not a chain, which rarely, if ever snap. Depending on the make of the car and the engine you may, or may not, have serious engine damage.. DO NOT ATTEMPT to start the car, have it towed to your shop of choice. If there is no engine damage a timing belt replacement generally will run you 2 or 3 hundred bucks...if you did serious engine damage you may have to decide if the car if worth the money to have it repaired. What you need to know is whether your car has an "interference" or "non-interference" type engine.. In an interference type engine if the timing belt breaks the valves will "interfere" with the pistons as they travel up if the timing belt breaks, which results in generally catastrophic engine failure.. non-interference engines generally suffer little or no engine damage with a broken timing belt.. I broke a timing belt on my 1990 Toyota Supra going 70mph, but it was a non-interference engine and after having the belt replaced it was fine.. here is a good list someone put together on what type of engine is in your car.. you should find the engine type either marked on the engine or on a label under the hood, or the owners manual.. good luck. http://yourcarangel.com/2014/07/interference-engines-complete-list/

Sep 27, 2015 | Cars & Trucks

1 Answer

Is it an interference or noninterference engine? Think timing chain has broke


Broken timing chain is a very large problem, if it happened while engine is running. Bent/broken valves and such. Makes a LOT of noise, and engine stops immediately.

Your question doesn't include make/model/year, so your question isn't possible to answer. Doesn't really matter, though, if your timing chain broke. That's pretty rare. Timing belt, yes. Chain, no.

Sep 18, 2015 | Cars & Trucks

1 Answer

Timing chain ford explorer


You do not specify the engine size in your description. It used to be normal that domestic (US) engines were non-interference, but this is no longer necessarily true. However, even if the engine was a interference type, usually, any damage is limited to valves in the cylinder heads. This does not require complete replacement of the engine. Once you determine the engine size, check to find out of the engine is an interference type. If not, replacement of the timing set should solve the problem. Otherwise, you'll need to tear the engine down to determine the magnitude of repairs needed.

Dec 03, 2013 | 1999 Ford Explorer

1 Answer

I have a 2001 ford explorer. is it an interference engine?


There is no indication in the parts book that it is an interference engine. Most of the time engines with timing chains are not.

Jul 17, 2013 | Cars & Trucks

1 Answer

Timing belt broke -2000 ford focus zx3 its 16v zetec engine Could you tell me if a 2000 Ford Focus has an non-interference engine or an interference engine. The timing belt broke and I'm wanting to...


I put your question into internet explorer & apparently
there are 2 engines in 2001 & 2001 that are interference

Seen the 2002 are the way to go if your buying one.

You can do a cylinder leak down test & there are some
nice cameras that go into small places that are for checking
things even inside your head thru the spark plug hole

Your not going to buy any of that,but can have those services
performed for piece of mind

A compression test is not really giving you the whole picture
that a cylinder leak down test would

Play around on You Tube & learn all you can

Sep 29, 2012 | Cars & Trucks

1 Answer

I have a 2001 Ford ZX2-broken timing belt-interference or non?


The straight answer is that it most likely is a interference engine, but you dont really know until its confirmed, plus special tools are needed to align the cam timing. Any repair shop can do a cyl leakage test to confirm that for you.

Jan 28, 2010 | 2001 Ford Escort ZX2

2 Answers

Does my 2001 3.3L V6 EFI Nissan Xterra have a non


It's has a timing belt, also it's an interference engine, if belt goes bad it will bent valve's .

Nov 24, 2009 | 2000 Nissan Xterra

1 Answer

Troubles in setting front timing chains.


go to www.motorcraftservice.com you can probably get your information there.

Oct 18, 2008 | 1998 Ford Explorer

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