Problems for specific Chevrolet Suburban 1500 years:

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Most reported 1990 Chevrolet Suburban 1500 problems

 

Verified for the Chevrolet Suburban 1500

The intake manifold gasket may develop an external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

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Verified for the Chevrolet Suburban 1500

The rear axle bearings have been known to wear grooves in the rear axle shafts, creating a grinding noise and leaky axle seals. An indication that this problem has occurred is axle fluid leaking onto the wheel.

4 Reports
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Verified for the Chevrolet Suburban 1500

A coolant leak may develop form the Intake manifold gasket causing overheating complaints. The coolant leak may be internal allowing coolant to mix with the engine oil, this condition can result in internal engine damage. Be aware that this problem is often mistaken as a blown head gasket.

3 Reports
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Verified for the Chevrolet Suburban 1500
The injection system may need to be adjusted more frequently than recommended.
3 Reports
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Verified for the Chevrolet Suburban 1500
The distributors can go bad and set a trouble code; they should be replaced.
2 Reports
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Verified for the Chevrolet Suburban 1500

The pitman arm and/or lower ball joints may wear causing loose steering and alignment issues. Replacement of worn components will be necessary before the alignment can be properly set to specification.

2 Reports
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Verified for the Chevrolet Suburban 1500
Faulty glow plugs and incorrect wiring to the glow plugs have been known to cause "hard start" problems.
2 Reports
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