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L4 Kicking HARD by Stainless1911
Started on: 12-19-2013 01:40 PM
Replies: 4 (139 views)
Last post by: theogre on 12-21-2013 09:00 AM
Stainless1911
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From: Davisburg Michigan
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Report this Post12-19-2013 01:40 PM Click Here to See the Profile for Stainless1911Click Here to Email Stainless1911Send a Private Message to Stainless1911Edit/Delete MessageReply w/QuoteDirect Link to This Post
The car idles fine, and it drives down the road fine, but when I try to accelerate, it surges, pops, backfires and lurches hard. If I floor it it gets worse, even if I shift down for a lower gear. It takes a long time at full throttle to get the car up to the speed limit and it feels like something is going to break with the motor slamming around like it does, but once I make the speed limit the car will run fine. What is this thing doing? It seems to clear when it warms up or drys out, not sure which.

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I have a 1987 Fiero, 4 cylinder 5 speed. With an 88 engine.

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jaskispyder
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Report this Post12-19-2013 02:09 PM Click Here to See the Profile for jaskispyderSend a Private Message to jaskispyderEdit/Delete MessageReply w/QuoteDirect Link to This Post
Any codes?
Check your plugs and wires. If those look good, check your coil packs. I had one that was cracked. Only acted up in wet weather.
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FieroTony
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Report this Post12-20-2013 02:31 PM Click Here to See the Profile for FieroTonyClick Here to Email FieroTonySend a Private Message to FieroTonyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Yes, definitely check your wires. Mine did this. Come to find out, #2 or #3 wire got fried on the exhaust manifold hiding behind the air cleaner. But looking at the wires you couldn't tell.

Good luck!!!
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Stainless1911
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Report this Post12-20-2013 02:36 PM Click Here to See the Profile for Stainless1911Click Here to Email Stainless1911Send a Private Message to Stainless1911Edit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks I'll b e able to check tomorrow.
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theogre
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Report this Post12-21-2013 09:00 AM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
plugs
plug wires
coil(s)

Bad egr valve can cause problems too.

See my Cave, DIS Ignition

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)


The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

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