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87 2,8 throttle body   (Technical Discussion & Questions - by lemonhead, started: 09-17-2020, last post: 2020-09-18 00:28:28 CEST)
dose anybody know what size the O ring is thats on the throttle body tube that connects to the intake manifold for the cold start injector? also i need to replace the cold start fitting seal that threds in to the injector block, it's a rubber metal washer looks like an air cond seal? thats...
Score: 1000, Size: 30 bytes

3800SC THROTTLE BODY   (Technical Discussion & Questions - by Spoon, started: 04-09-2020, last post: 2020-04-10 03:52:05 CEST)
Hoping somebody will step up to the plate with some info. While removing the IAC, TPS and MAF sensors one of the torx security screws snapped off on the IAC. This is a 2000 engine and I believe this sensor is original. I took a good screw to Home Depot and it matched up with a metric M4-0.7x12MM....
Score: 1000, Size: 26 bytes

what year did series 2 3800SC throttle bodies CHANGE ?   (Technical Discussion & Questions - by Lou6t4gto, started: 01-23-2020, last post: 2020-01-25 20:45:27 CET)
I have a few 3800 Throttle bodies here from series 2 3800SC engines. the only difference I can SEE, is the size of the HOLE where the MAF goes in. thus mandating a "different" MAF. How do I tell which is which year ? Thank you
Score: 1000, Size: 64 bytes

Holley 2.8 Throttle Body Rebuild Kit   (Technical Discussion & Questions - by Camel, started: 11-07-2019, last post: 2019-11-08 06:17:36 CET)
I searched around, saw a few posts here that never got any traction, but does anyone know of a "rebuild kit" or a breakdown of the 2.8 throttle body? I know it can't consist of much, but I'd like to tear one down and polish/powder coat.I purchased one already rebuillt however out of all the...
Score: 1000, Size: 42 bytes

Dual Throttle body intake   (General Fiero Chat - by XxdjxX89, started: 01-14-2016, last post: 2019-09-15 17:22:09 CEST)
Does anybody still sell dual throttle body intakes?
Score: 1000, Size: 34 bytes

O-ring for throttle body 2.8   (Technical Discussion & Questions - by go faster, started: 08-28-2019, last post: 2019-08-30 00:15:54 CEST)
Working on vacuum leaks would like to know the size of the o-ring for large metal line at the bottom of the throttle body. Did a check with smoke and had some smoke leaking from that line. Any help would be great. Did a search no information was available.
Score: 1000, Size: 38 bytes

Large bore vacuum line in throttle body   (Technical Discussion & Questions - by damittron, started: 06-27-2019, last post: 2019-06-28 15:05:42 CEST)
I noticed a vacuum leak noise coming from my engine this afternoon, I messed around with things until I finally found it was the large bore vacuum hose (tube?, it is metal) was where the noise was coming from (the one connected to the bottom of the TB). I used a large screw driver and levered it a...
Score: 1000, Size: 49 bytes

3800 - lower manifold coolant plugs? or throttle body spacer with coolant blockoff?   (Technical Discussion & Questions - by DimeMachine, started: 06-10-2019, last post: 2019-06-23 20:47:40 CEST)
Question for the 3800 crowd and first hand knowledge.My air inlet pipe and rubber coupler is getting more heatsoaked than I would like. I see a lot of the GTP crowd plugs the two holes in the lower intake manifold thus blocking coolant flow to the M90 supercharger and throttle body. I am not...
Score: 1000, Size: 96 bytes

Fuel pump and throttle body problems   (Technical Discussion & Questions - by jaredaltizer, started: 06-08-2019, last post: 2019-06-12 19:17:59 CEST)
Hello PFFers.Recently, I have taken on the task of swapping my stock 2.8 V6 out for a lower-mileage one, because I threw a rod in my original motor. This has been my first and (hopefully) only engine swap. After finally getting the engine and cradle back into the car with most of the vacuum lines...
Score: 1000, Size: 49 bytes

Throttle body leaking ?? Leaking what?   (Technical Discussion & Questions - by Frank-ero, started: 04-29-2019, last post: 2019-05-13 20:00:17 CEST)
I installed a new TPS and CPV. Took the Fiero down the road and some acceleration problems I was having had stopped. Next time it has code 21 and 22 (high voltage tps and low voltage tps...) But I took the hose from the throttle body off to spray some starter in and liquid comes pouring out! AH...
Score: 1000, Size: 48 bytes

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