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I would start @ the Fuel Filter Then the sock in the tank-IF the fuel pressure is OK then look @ the COIL etc.IF the Timing chain jumped a tooth-Serious power loss.IF all 8 Cylinder have Good Compression OR EQUAL Compression-IT is a spark or Fuel Problem. IF it has a Distributor EVEN a bad rotor will cause a serious power loss.

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โˆ™ 2004-11-02 06:12:54
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Q: What would cause a serious decrease in power on a 1989 Chevy Suburban 350 half ton 700r4 with 194 thousand miles?
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Related Questions

What is the transmission in the 1991 suburban with overdrive?


What transmission is in a 1991 suburban 700r4 or 4L80?

If it's a 1/2 ton then it will be a 700R4. 3/4 ton will have a 4L60E.

Does your 95 suburban have a 700R4 transmission or a 4L80E behind a 350 engine?

My 93 has a 4l60e. A 95 should have the same. It look like a 700r4 but it computer controlled.

Can you use a 700r4 transmission from a 1994 suburban for my 1987 silverado?

First of all is that the 94 suburban has a 4L60E transmission in it. Therefore it will no work in the 87 model.

What kind of transmission in a 1991 1500 suburban 4x4 350 engine?

Should be the 700R4 trans.

Will a 700R4 transmission fit a 1998 Chevy Suburban?

You burban should have a 4l60e in it. All this is is a 700r4 with electronics added. If the bell housing is the same it will fit but it won't work due to the electronics.

What transmission came in a 1984 Chevy C-20 Suburban?

700r4 NEW ANSWER: That would be the 400 turbo

What transmission does the 89 34 ton suburban with the 5.7 engine have 4L80E or 700R4 or other?

I have the 4x4 version and it came with a TH-400.

Will a TH 700R-4 transmission fit in a 1991 Chevy suburban 4wd with a 350 motor?

Yes it will if the 700r4 is out of a 4x4 to start with.

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How do you turn you 700r4 transmission into a 4l60e?

You can't. No matter what you do to it. It will always be a 700R4

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Will a 83 gm 700r4 work in a 87 gm with a 700r4?


What trucks have the 700R4 transmission?

I think it was from 1988 through 1992 used the 700R4

Can a 700r4 transmission bolt to a 87 305?

Yes...and most of them came with the 700r4. If it wasn't originally equipped the 700r4 then you may have to change the tranny cross member.

What is the Transmission fluid capacity for a 1989 700r4?

what is the transmission capacity for a 1988 700r4 with transfer case

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NO, Not even close. The 4L80E is an electronic / computer controlled transmission. The 700R4 is not.

What kind of transmissions can you use with Chevy 350 automatic?

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Is a 4l60e the same as a 700r4?


Can a 4L60E be turned into a 700R4?


Is a 4l60E the same transmission as a 700R4?

NO.. Not even close. The 4L60E is a computer controlled transmission/ELECTRONIC transmission and the 700R4 is not.

Will a Chevy 283ci bolt up to 700R4 auto trans?

Yes unless the 700r4 came behind a 2.8

1991 Chevy silverado 1500 2wd 5.7 v8 automatic what transmission is on it 350 400 or 700r4?

That would be the 700R4

Will a 700r transmission work in a 1991 Chevy 4x4?

YES. If it is a 700R4 and is a 4x4 transmission. That truck came factory with a 700R4

What modifications need to be done to transfer a transmission from a 1995 suburban to a 1991 GM C PU?

You would need an electronically controlled engine with an ECM. The 700R4 in the 91 is a mechanically controlled transmission.. the 4L60E in the 95 is an electronically controlled transmission.