Question about 2000 Oldsmobile Alero

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My 2000 Olds Alero has a bad 3.4 V6 engine. I bought an engine out of another Alero thinking this would be an easy swap. It appears that my current engine has some type of injectors going into each cylinder head that 99% of other Alero do not. Is this a problem? Can I still switch motors without engine light problems? Can I take my heads and intake and place on the new engine? I have pictures of both engines, will send once I have an email to send to. Thanks sooooo much!!!!

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Posted on Jan 02, 2017

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intake manifold has a vacum leak or other vacum leak hose etc.

Posted on Dec 03, 2008

  • 17 Answers

SOURCE: Head Swap

The 2.8 is a 60 degree engine, and the 4.3 a 90 degree engine. Meaning the bank of the cylinders in relation to the center line of the engine. If you were asking about a 3.8 and 4.3 I'd say yes you could, as each of these is based on a 305, and 350 respectively. I don't believe the 2.8 and 4.3 have the same cylinder head bolt patterns to allow correct mounting to the block. Additionally you have to be sure about valve opening clearance requirements using the larger cylinder head because of the smaller bore of the 2.8. The 4.3 heads have larger valves, and may not clear the block surrounding the bore. The chamber of the 4.3 heads might extend onto the flat surface of the 2.8 block which is an engineering no-no due to hot spots/dieseling and other problems you would design into this monsterous mating.
I like the way you think though. Chevrolet has been doing this since they introduced the first small block back in the 50's.
You are right about the 2.8 being a dud. I had one, and it couldn't get out of its own way. You might be better finding a good low mileage 4.3, and grab the mounts along with the vehicle you got the engine from. Also be sure you get the computer, and harness. If that vehicle is injected and computer controlled, and yours is not, there would be a whole nother host of issues to deal with that you don't sound like you would wanting to encounter. In that case you might as well drop a small block in, because the issues would be similar.

Posted on May 21, 2009

  • 37 Answers

SOURCE: license plate bulb 99 alero

remove the 2 license lamp screws from outside,above the lic.plate then from insidethe trunk pull up the lic.lamp housing and replace the should pull straight out

Posted on Dec 07, 2009

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SOURCE: 99 olds alero won't start engine turns over has

Check for spark and fuel pressure.

Posted on Mar 07, 2010

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SOURCE: 2000 olds alero v6 spark plug firing order diagram

2000 Oldsmobile Alero 3.4 liter V-6 VIN "E"


Hope helps (remember rated this).

Posted on Jul 05, 2010

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Offmy 2000 oldsmobile alero over heats n shuts off

if it's a V6 then you prob have intake gskts/head gskts leaking coolant to cylinder and causing it to hydro lock, filling cylinder with coolant and filling radiator with cylinder pressure causing coolant to blow out of radiator and reduces your cooling of engine.....see a mechanic looking at a big repair bill or engine swap

May 14, 2012 | 2000 Oldsmobile Alero

1 Answer

Does a olds alero 2000 have a maf sensor

On the top left side of the engine 4cyl

Air Flow Meter/Sensor Locations View (3100 LG8) 81990523

Jan 01, 2011 | Oldsmobile Alero Cars & Trucks

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How to replace fuel pressure regulator 2000 Olds. Alero V-6

relieve fuel system pressure. on the v6, detach the fuel return line from the fuel pressure regulator. remove the mounting fasteners, and detach fuel regulator from rail. on the v6 install the fuel return line before tightening the regulator mounting screws. otherwise a leak could develop. be sure to replace all O-ring seals, and coat them with a lite coat of oil. have a good one !!

Dec 22, 2010 | 2000 Oldsmobile Alero

1 Answer

Engine size of 2001 olds alero

Common engine size is the 3.4 V6 on the Alero but there was also a optional 2.4 liter I4 available. The V6 will have stamped in the engine upper intake 3400.
Thank you for using fixya and good luck.

Aug 26, 2010 | 2001 Oldsmobile Alero

1 Answer

2000 olds alero v6 spark plug firing order diagram

2000 Oldsmobile Alero 3.4 liter V-6 VIN "E"


Hope helps (remember rated this).

Jul 05, 2010 | 2000 Oldsmobile Alero

2 Answers

2000 olds alero will start but wont stay running.

Low fuel pressure? Bad idle air control motor? 2.4 DOHC or 3.4 V6? Too many possibilites...not enough info

Sep 14, 2009 | 1999 Oldsmobile Alero

1 Answer


only things ive can across with type of prob and u did one with hub some brakerotors were bad causing noise on these cars only other things is a bad wheel/tire balance, alignment also some cheap tires are extremely noisy ive always had good luck with bfgoodrich tires

Jun 18, 2008 | 2000 Oldsmobile Alero

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